55639576 has 32 divisors (see below), whose sum is σ = 110419200. Its totient is φ = 26229280.

The previous prime is 55639567. The next prime is 55639607. The reversal of 55639576 is 67593655.

55639576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

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 7 ways as a sum of consecutive naturals, for example, 10935 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (3450600).

Almost surely, 2^55639576 is an apocalyptic number.

It is an amenable number.

55639576 is a deficient number, since it is larger than the sum of its proper divisors (54779624).

55639576 is a wasteful number, since it uses less digits than its factorization.

55639576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 4355 counting only the distinct ones).

The product of its digits is 850500, while the sum is 46.

The square root of 55639576 is about 7459.1940583417. The cubic root of 55639576 is about 381.7636760923.

The spelling of 55639576 in words is "fifty-five million, six hundred thirty-nine thousand, five hundred seventy-six".