It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 499 074 is not a prime number.
For example, 509 499 074 can be divided by 2: 509 499 074 / 2 = 254 749 537.
For 509 499 074 to be a prime number, it would have been required that 509 499 074 has only two divisors, i.e., itself and 1.
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509 499 074 is an even number, because it is evenly divisible by 2: 509 499 074 / 2 = 254 749 537.
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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 509 499 074 is about 22 572.086.
Thus, the square root of 509 499 074 is not an integer, and therefore 509 499 074 is not a square number.
The square of a number (here 509 499 074) is the result of the product of this number (509 499 074) by itself (i.e., 509 499 074 × 509 499 074); the square of 509 499 074 is sometimes called "raising 509 499 074 to the power 2", or "509 499 074 squared".
The square of 509 499 074 is 259 589 306 406 857 472 because 509 499 074 × 509 499 074 = 509 499 0742 = 259 589 306 406 857 472.
As a consequence, 509 499 074 is the square root of 259 589 306 406 857 472.
509 499 074 is a number with 9 digits.
The multiples of 509 499 074 are all integers evenly divisible by 509 499 074, that is all numbers such that the remainder of the division by 509 499 074 is zero. There are infinitely many multiples of 509 499 074. The smallest multiples of 509 499 074 are: