56166772 has 24 divisors (see below), whose sum is σ = 101056032. Its totient is φ = 27300000.

The previous prime is 56166749. The next prime is 56166791. The reversal of 56166772 is 27766165.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42522 + ... + 43822.

It is an arithmetic number, because the mean of its divisors is an integer number (4210668).

Almost surely, 2^56166772 is an apocalyptic number.

It is an amenable number.

56166772 is a deficient number, since it is larger than the sum of its proper divisors (44889260).

56166772 is a wasteful number, since it uses less digits than its factorization.

56166772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1597 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 56166772 is about 7494.4494127321. The cubic root of 56166772 is about 382.9656498767.

The spelling of 56166772 in words is "fifty-six million, one hundred sixty-six thousand, seven hundred seventy-two".