56431065 has 16 divisors (see below), whose sum is σ = 90692928. Its totient is φ = 29962176.

The previous prime is 56431057. The next prime is 56431079. The reversal of 56431065 is 56013465.

It is not a de Polignac number, because 56431065 - 2³ = 56431057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4882 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (5668308).

Almost surely, 2^56431065 is an apocalyptic number.

It is an amenable number.

56431065 is a deficient number, since it is larger than the sum of its proper divisors (34261863).

56431065 is a wasteful number, since it uses less digits than its factorization.

56431065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16808.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56431065 is about 7512.0613016668. The cubic root of 56431065 is about 383.5653923610.

The spelling of 56431065 in words is "fifty-six million, four hundred thirty-one thousand, sixty-five".