56440616 has 16 divisors (see below), whose sum is σ = 107561940. Its totient is φ = 27757440.

The previous prime is 56440603. The next prime is 56440619. The reversal of 56440616 is 61604465.

It can be written as a sum of positive squares in 2 ways, for example, as 45616516 + 10824100 = 6754^2 + 3290^2 .

It is not an unprimeable number, because it can be changed into a prime (56440619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57341 + ... + 58316.

Almost surely, 2^56440616 is an apocalyptic number.

It is an amenable number.

56440616 is a deficient number, since it is larger than the sum of its proper divisors (51121324).

56440616 is a wasteful number, since it uses less digits than its factorization.

56440616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115724 (or 115720 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 56440616 is about 7512.6969857702. The cubic root of 56440616 is about 383.5870307169.

The spelling of 56440616 in words is "fifty-six million, four hundred forty thousand, six hundred sixteen".