It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 502 416 is not a prime number.
For example, 502 416 can be divided by 2: 502 416 / 2 = 251 208.
For 502 416 to be a prime number, it would have been required that 502 416 has only two divisors, i.e., itself and 1.
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502 416 is an even number, because it is evenly divisible by 2: 502 416 / 2 = 251 208.
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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 502 416 is about 708.813.
Thus, the square root of 502 416 is not an integer, and therefore 502 416 is not a square number.
The square of a number (here 502 416) is the result of the product of this number (502 416) by itself (i.e., 502 416 × 502 416); the square of 502 416 is sometimes called "raising 502 416 to the power 2", or "502 416 squared".
The square of 502 416 is 252 421 837 056 because 502 416 × 502 416 = 502 4162 = 252 421 837 056.
As a consequence, 502 416 is the square root of 252 421 837 056.
The multiples of 502 416 are all integers evenly divisible by 502 416, that is all numbers such that the remainder of the division by 502 416 is zero. There are infinitely many multiples of 502 416. The smallest multiples of 502 416 are: