55639072 has 24 divisors (see below), whose sum is σ = 110221776. Its totient is φ = 27646272.

The previous prime is 55639063. The next prime is 55639099. The reversal of 55639072 is 27093655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (4592574).

Almost surely, 2^55639072 is an apocalyptic number.

It is an amenable number.

55639072 is a deficient number, since it is larger than the sum of its proper divisors (54582704).

55639072 is a wasteful number, since it uses less digits than its factorization.

55639072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10840 (or 10832 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 55639072 is about 7459.1602744545. The cubic root of 55639072 is about 381.7625233787.

The spelling of 55639072 in words is "fifty-five million, six hundred thirty-nine thousand, seventy-two".