520566313 has 24 divisors (see below), whose sum is σ = 570569600. Its totient is φ = 473529888.

The previous prime is 520566247. The next prime is 520566373. The reversal of 520566313 is 313665025.

It is not a de Polignac number, because 520566313 - 2²⁵ = 487011881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520566373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3315631 + ... + 3315787.

Almost surely, 2^520566313 is an apocalyptic number.

It is an amenable number.

520566313 is a deficient number, since it is larger than the sum of its proper divisors (50003287).

520566313 is a wasteful number, since it uses less digits than its factorization.

520566313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 520566313 is about 22815.9223569857. The cubic root of 520566313 is about 804.4369675090.

The spelling of 520566313 in words is "five hundred twenty million, five hundred sixty-six thousand, three hundred thirteen".