512500313 has 16 divisors (see below), whose sum is σ = 558823440. Its totient is φ = 467195904.

The previous prime is 512500291. The next prime is 512500327. The reversal of 512500313 is 313005215.

It can be written as a sum of positive squares in 8 ways, for example, as 139546969 + 372953344 = 11813^2 + 19312^2 .

It is a cyclic number.

It is not a de Polignac number, because 512500313 - 2⁸ = 512500057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512500333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600395 + ... + 601247.

It is an arithmetic number, because the mean of its divisors is an integer number (34926465).

Almost surely, 2^512500313 is an apocalyptic number.

It is an amenable number.

512500313 is a deficient number, since it is larger than the sum of its proper divisors (46323127).

512500313 is a wasteful number, since it uses less digits than its factorization.

512500313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 512500313 is about 22638.4697583560. The cubic root of 512500313 is about 800.2604948563.

Adding to 512500313 its reverse (313005215), we get a palindrome (825505528).

The spelling of 512500313 in words is "five hundred twelve million, five hundred thousand, three hundred thirteen".