504931513 has 2 divisors, whose sum is σ = 504931514. Its totient is φ = 504931512.

The previous prime is 504931507. The next prime is 504931519. The reversal of 504931513 is 315139405.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (504931507) and next prime (504931519).

It can be written as a sum of positive squares in only one way, i.e., 498316329 + 6615184 = 22323^2 + 2572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504931513 is a prime.

It is not a weakly prime, because it can be changed into another prime (504931519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252465756 + 252465757.

It is an arithmetic number, because the mean of its divisors is an integer number (252465757).

Almost surely, 2^504931513 is an apocalyptic number.

It is an amenable number.

504931513 is a deficient number, since it is larger than the sum of its proper divisors (1).

504931513 is an equidigital number, since it uses as much as digits as its factorization.

504931513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 504931513 is about 22470.6811868265. The cubic root of 504931513 is about 796.3014233691.

The spelling of 504931513 in words is "five hundred four million, nine hundred thirty-one thousand, five hundred thirteen".