520256432 has 20 divisors (see below), whose sum is σ = 1010188320. Its totient is φ = 259562688.

The previous prime is 520256411. The next prime is 520256447. The reversal of 520256432 is 234652025.

It is a junction number, because it is equal to n+sod(n) for n = 520256395 and 520256404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27707 + ... + 42522.

It is an arithmetic number, because the mean of its divisors is an integer number (50509416).

Almost surely, 2^520256432 is an apocalyptic number.

It is an amenable number.

520256432 is a deficient number, since it is larger than the sum of its proper divisors (489931888).

520256432 is a wasteful number, since it uses less digits than its factorization.

520256432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70700 (or 70694 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 520256432 is about 22809.1304525184. The cubic root of 520256432 is about 804.2773149629.

The spelling of 520256432 in words is "five hundred twenty million, two hundred fifty-six thousand, four hundred thirty-two".