55183956 has 24 divisors (see below), whose sum is σ = 128887584. Its totient is φ = 18376800.

The previous prime is 55183943. The next prime is 55183963. The reversal of 55183956 is 65938155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17931 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (5370316).

Almost surely, 2^55183956 is an apocalyptic number.

It is an amenable number.

55183956 is an abundant number, since it is smaller than the sum of its proper divisors (73703628).

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

55183956 is a wasteful number, since it uses less digits than its factorization.

55183956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471 (or 4469 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 55183956 is about 7428.5904450306. The cubic root of 55183956 is about 380.7187596654.

The spelling of 55183956 in words is "fifty-five million, one hundred eighty-three thousand, nine hundred fifty-six".