56571972 has 12 divisors (see below), whose sum is σ = 132001296. Its totient is φ = 18857320.

The previous prime is 56571959. The next prime is 56571989. The reversal of 56571972 is 27917565.

56571972 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 (12).

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 3 ways as a sum of consecutive naturals, for example, 2357154 + ... + 2357177.

It is an arithmetic number, because the mean of its divisors is an integer number (11000108).

Almost surely, 2^56571972 is an apocalyptic number.

It is an amenable number.

56571972 is an abundant number, since it is smaller than the sum of its proper divisors (75429324).

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

56571972 is a wasteful number, since it uses less digits than its factorization.

56571972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714338 (or 4714336 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 56571972 is about 7521.4341717521. The cubic root of 56571972 is about 383.8843781674.

The spelling of 56571972 in words is "fifty-six million, five hundred seventy-one thousand, nine hundred seventy-two".