520456 has 16 divisors (see below), whose sum is σ = 991440. Its totient is φ = 256080.

The previous prime is 520451. The next prime is 520529. The reversal of 520456 is 654025.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (520451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51 + ... + 1021.

It is an arithmetic number, because the mean of its divisors is an integer number (61965).

2⁵²⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

520456 is a deficient number, since it is larger than the sum of its proper divisors (470984).

520456 is a wasteful number, since it uses less digits than its factorization.

520456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520456 is about 721.4263649188. The cubic root of 520456 is about 80.4380140856.

The spelling of 520456 in words is "five hundred twenty thousand, four hundred fifty-six".