55638814 has 24 divisors (see below), whose sum is σ = 105911928. Its totient is φ = 21677040.

The previous prime is 55638799. The next prime is 55638839. The reversal of 55638814 is 41883655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24729 + ... + 26884.

It is an arithmetic number, because the mean of its divisors is an integer number (4412997).

Almost surely, 2^55638814 is an apocalyptic number.

55638814 is a deficient number, since it is larger than the sum of its proper divisors (50273114).

55638814 is a wasteful number, since it uses less digits than its factorization.

55638814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51640 (or 51633 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 55638814 is about 7459.1429802625. The cubic root of 55638814 is about 381.7619332965.

The spelling of 55638814 in words is "fifty-five million, six hundred thirty-eight thousand, eight hundred fourteen".