56565400 has 24 divisors (see below), whose sum is σ = 131515020. Its totient is φ = 22626080.

The previous prime is 56565391. The next prime is 56565433. The reversal of 56565400 is 456565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141214 + ... + 141613.

Almost surely, 2^56565400 is an apocalyptic number.

56565400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56565400 is an abundant number, since it is smaller than the sum of its proper divisors (74949620).

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

56565400 is a wasteful number, since it uses less digits than its factorization.

56565400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282843 (or 282834 counting only the distinct ones).

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

The square root of 56565400 is about 7520.9972742981. The cubic root of 56565400 is about 383.8695122320.

It can be divided in two parts, 56565 and 400, that added together give a palindrome (56965).

The spelling of 56565400 in words is "fifty-six million, five hundred sixty-five thousand, four hundred".