Is 55009 a prime number?

55 009 is an odd number, because it is not evenly divisible by 2.

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• What is an even number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 55 009 is about 234.540.

Thus, the square root of 55 009 is not an integer, and therefore 55 009 is not a square number.

Anyway, 55 009 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 55 009) is the result of the product of this number (55 009) by itself (i.e., 55 009 × 55 009); the square of 55 009 is sometimes called "raising 55 009 to the power 2", or "55 009 squared".

The square of 55 009 is 3 025 990 081 because 55 009 × 55 009 = 55 009² = 3 025 990 081.

As a consequence, 55 009 is the square root of 3 025 990 081.

55 009 is a number with 5 digits.

The multiples of 55 009 are all integers evenly divisible by 55 009, that is all numbers such that the remainder of the division by 55 009 is zero. There are infinitely many multiples of 55 009. The smallest multiples of 55 009 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 55 009 too, since 0 × 55 009 = 0
• 55 009: indeed, 55 009 is a multiple of itself, since 55 009 is evenly divisible by 55 009 (we have 55 009 / 55 009 = 1, so the remainder of this division is indeed zero)
• 110 018: indeed, 110 018 = 55 009 × 2
• 165 027: indeed, 165 027 = 55 009 × 3
• 220 036: indeed, 220 036 = 55 009 × 4
• 275 045: indeed, 275 045 = 55 009 × 5
• etc.

• Preceding numbers: …55 007, 55 008
• Following numbers: 55 010, 55 011…

Nearest numbers from 55 009

• Preceding prime number: 55 001
• Following prime number: 55 021

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• 55 009 est-il un nombre premier ?