56985907 has 4 divisors (see below), whose sum is σ = 62166456. Its totient is φ = 51805360.

The previous prime is 56985869. The next prime is 56985923. The reversal of 56985907 is 70958965.

56985907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56985907 - 2⁷ = 56985779 is a prime.

It is a super-2 number, since 2×56985907² = 6494787193225298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56985937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2590258 + ... + 2590279.

It is an arithmetic number, because the mean of its divisors is an integer number (15541614).

Almost surely, 2^56985907 is an apocalyptic number.

56985907 is a deficient number, since it is larger than the sum of its proper divisors (5180549).

56985907 is a wasteful number, since it uses less digits than its factorization.

56985907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180548.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 56985907 is about 7548.9010458477. The cubic root of 56985907 is about 384.8183930125.

The spelling of 56985907 in words is "fifty-six million, nine hundred eighty-five thousand, nine hundred seven".