56490504 has 32 divisors (see below), whose sum is σ = 161401920. Its totient is φ = 16140096.

The previous prime is 56490503. The next prime is 56490509. The reversal of 56490504 is 40509465.

It is not an unprimeable number, because it can be changed into a prime (56490503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167959 + ... + 168294.

It is an arithmetic number, because the mean of its divisors is an integer number (5043810).

Almost surely, 2^56490504 is an apocalyptic number.

It is an amenable number.

56490504 is an abundant number, since it is smaller than the sum of its proper divisors (104911416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56490504 is a wasteful number, since it uses less digits than its factorization.

56490504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336269 (or 336265 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 56490504 is about 7516.0164981192. The cubic root of 56490504 is about 383.7000152759.

Adding to 56490504 its reverse (40509465), we get a palindrome (96999969).

The spelling of 56490504 in words is "fifty-six million, four hundred ninety thousand, five hundred four".