It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 505 169 is not a prime number.
For example, 505 169 can be divided by 7: 505 169 / 7 = 72 167.
For 505 169 to be a prime number, it would have been required that 505 169 has only two divisors, i.e., itself and 1.
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505 169 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 505 169 is about 710.752.
Thus, the square root of 505 169 is not an integer, and therefore 505 169 is not a square number.
The square of a number (here 505 169) is the result of the product of this number (505 169) by itself (i.e., 505 169 × 505 169); the square of 505 169 is sometimes called "raising 505 169 to the power 2", or "505 169 squared".
The square of 505 169 is 255 195 718 561 because 505 169 × 505 169 = 505 1692 = 255 195 718 561.
As a consequence, 505 169 is the square root of 255 195 718 561.
The multiples of 505 169 are all integers evenly divisible by 505 169, that is all numbers such that the remainder of the division by 505 169 is zero. There are infinitely many multiples of 505 169. The smallest multiples of 505 169 are: