56801772 has 36 divisors (see below), whose sum is σ = 144200056. Its totient is φ = 18852480.

The previous prime is 56801747. The next prime is 56801813. The reversal of 56801772 is 27710865.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5403 + ... + 11949.

Almost surely, 2^56801772 is an apocalyptic number.

It is an amenable number.

56801772 is an abundant number, since it is smaller than the sum of its proper divisors (87398284).

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

56801772 is a wasteful number, since it uses less digits than its factorization.

56801772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798 (or 6793 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 56801772 is about 7536.6950316435. The cubic root of 56801772 is about 384.4034659069.

The spelling of 56801772 in words is "fifty-six million, eight hundred one thousand, seven hundred seventy-two".