It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 495 497 is not a prime number.
For example, 495 497 can be divided by 53: 495 497 / 53 = 9 349.
For 495 497 to be a prime number, it would have been required that 495 497 has only two divisors, i.e., itself and 1.
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495 497 is an odd number, because it is not evenly divisible by 2.
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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 495 497 is about 703.915.
Thus, the square root of 495 497 is not an integer, and therefore 495 497 is not a square number.
The square of a number (here 495 497) is the result of the product of this number (495 497) by itself (i.e., 495 497 × 495 497); the square of 495 497 is sometimes called "raising 495 497 to the power 2", or "495 497 squared".
The square of 495 497 is 245 517 277 009 because 495 497 × 495 497 = 495 4972 = 245 517 277 009.
As a consequence, 495 497 is the square root of 245 517 277 009.
The multiples of 495 497 are all integers evenly divisible by 495 497, that is all numbers such that the remainder of the division by 495 497 is zero. There are infinitely many multiples of 495 497. The smallest multiples of 495 497 are: