56501772 has 36 divisors (see below), whose sum is σ = 135179688. Its totient is φ = 18368000.

The previous prime is 56501719. The next prime is 56501779. The reversal of 56501772 is 27710565.

It is not an unprimeable number, because it can be changed into a prime (56501779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18772 + ... + 21572.

Almost surely, 2^56501772 is an apocalyptic number.

It is an amenable number.

56501772 is an abundant number, since it is smaller than the sum of its proper divisors (78677916).

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

56501772 is a wasteful number, since it uses less digits than its factorization.

56501772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 2847 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 56501772 is about 7516.7660599489. The cubic root of 56501772 is about 383.7255254297.

The spelling of 56501772 in words is "fifty-six million, five hundred one thousand, seven hundred seventy-two".