56905764 has 12 divisors (see below), whose sum is σ = 132780144. Its totient is φ = 18968584.

The previous prime is 56905759. The next prime is 56905781. The reversal of 56905764 is 46750965.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371062 + ... + 2371085.

It is an arithmetic number, because the mean of its divisors is an integer number (11065012).

Almost surely, 2^56905764 is an apocalyptic number.

It is an amenable number.

56905764 is an abundant number, since it is smaller than the sum of its proper divisors (75874380).

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

56905764 is a wasteful number, since it uses less digits than its factorization.

56905764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742154 (or 4742152 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 56905764 is about 7543.5909221007. The cubic root of 56905764 is about 384.6379099710.

The spelling of 56905764 in words is "fifty-six million, nine hundred five thousand, seven hundred sixty-four".