56117907 has 24 divisors (see below), whose sum is σ = 86931600. Its totient is φ = 35776224.

The previous prime is 56117891. The next prime is 56117933. The reversal of 56117907 is 70971165.

56117907 is a `hidden beast` number, since 561 + 1 + 7 + 90 + 7 = 666.

It is not a de Polignac number, because 56117907 - 2⁴ = 56117891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56112907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12319 + ... + 16247.

It is an arithmetic number, because the mean of its divisors is an integer number (3622150).

Almost surely, 2^56117907 is an apocalyptic number.

56117907 is a deficient number, since it is larger than the sum of its proper divisors (30813693).

56117907 is a wasteful number, since it uses less digits than its factorization.

56117907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 56117907 is about 7491.1886239768. The cubic root of 56117907 is about 382.8545578237.

The spelling of 56117907 in words is "fifty-six million, one hundred seventeen thousand, nine hundred seven".