56512880 has 40 divisors (see below), whose sum is σ = 135928800. Its totient is φ = 21824768.

The previous prime is 56512873. The next prime is 56512891. The reversal of 56512880 is 8821565.

It is a happy number.

56512880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 56512880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9860 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (3398220).

Almost surely, 2^56512880 is an apocalyptic number.

It is an amenable number.

56512880 is an abundant number, since it is smaller than the sum of its proper divisors (79415920).

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

56512880 is a wasteful number, since it uses less digits than its factorization.

56512880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24401 (or 24395 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 56512880 is about 7517.5049052196. The cubic root of 56512880 is about 383.7506700325.

The spelling of 56512880 in words is "fifty-six million, five hundred twelve thousand, eight hundred eighty".