520513456 has 10 divisors (see below), whose sum is σ = 1008494852. Its totient is φ = 260256720.

The previous prime is 520513453. The next prime is 520513457. The reversal of 520513456 is 654315025.

It is not an unprimeable number, because it can be changed into a prime (520513451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16266030 + ... + 16266061.

Almost surely, 2^520513456 is an apocalyptic number.

It is an amenable number.

520513456 is a deficient number, since it is larger than the sum of its proper divisors (487981396).

520513456 is a wasteful number, since it uses less digits than its factorization.

520513456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532099 (or 32532093 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 520513456 is about 22814.7639917664. The cubic root of 520513456 is about 804.4097397489.

The spelling of 520513456 in words is "five hundred twenty million, five hundred thirteen thousand, four hundred fifty-six".