56172908 has 12 divisors (see below), whose sum is σ = 107239272. Its totient is φ = 25533120.

The previous prime is 56172889. The next prime is 56172917. The reversal of 56172908 is 80927165.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 638285 + ... + 638372.

It is an arithmetic number, because the mean of its divisors is an integer number (8936606).

Almost surely, 2^56172908 is an apocalyptic number.

It is an amenable number.

56172908 is a deficient number, since it is larger than the sum of its proper divisors (51066364).

56172908 is a wasteful number, since it uses less digits than its factorization.

56172908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276672 (or 1276670 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 56172908 is about 7494.8587711844. The cubic root of 56172908 is about 382.9795952017.

The spelling of 56172908 in words is "fifty-six million, one hundred seventy-two thousand, nine hundred eight".