56401065 has 24 divisors (see below), whose sum is σ = 111728448. Its totient is φ = 25783200.

The previous prime is 56401039. The next prime is 56401099. The reversal of 56401065 is 56010465.

It is a happy number.

56401065 is a `hidden beast` number, since 5 + 640 + 10 + 6 + 5 = 666.

It is not a de Polignac number, because 56401065 - 2⁶ = 56401001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89211 + ... + 89840.

It is an arithmetic number, because the mean of its divisors is an integer number (4655352).

Almost surely, 2^56401065 is an apocalyptic number.

It is an amenable number.

56401065 is a deficient number, since it is larger than the sum of its proper divisors (55327383).

56401065 is a wasteful number, since it uses less digits than its factorization.

56401065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179069 (or 179066 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56401065 is about 7510.0642473950. The cubic root of 56401065 is about 383.4974097023.

The spelling of 56401065 in words is "fifty-six million, four hundred one thousand, sixty-five".