56183640 has 64 divisors (see below), whose sum is σ = 178472160. Its totient is φ = 14100480.

The previous prime is 56183639. The next prime is 56183669. The reversal of 56183640 is 4638165.

56183640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11731 + ... + 15810.

Almost surely, 2^56183640 is an apocalyptic number.

It is an amenable number.

56183640 is an abundant number, since it is smaller than the sum of its proper divisors (122288520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56183640 is a wasteful number, since it uses less digits than its factorization.

56183640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27572 (or 27568 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 56183640 is about 7495.5746944447. The cubic root of 56183640 is about 383.0039834429.

The spelling of 56183640 in words is "fifty-six million, one hundred eighty-three thousand, six hundred forty".