55232556 has 12 divisors (see below), whose sum is σ = 128875992. Its totient is φ = 18410848.

The previous prime is 55232549. The next prime is 55232561. The reversal of 55232556 is 65523255.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2301345 + ... + 2301368.

It is an arithmetic number, because the mean of its divisors is an integer number (10739666).

Almost surely, 2^55232556 is an apocalyptic number.

It is an amenable number.

55232556 is an abundant number, since it is smaller than the sum of its proper divisors (73643436).

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

55232556 is a wasteful number, since it uses less digits than its factorization.

55232556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602720 (or 4602718 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 55232556 is about 7431.8608706030. The cubic root of 55232556 is about 380.8304920355.

The spelling of 55232556 in words is "fifty-five million, two hundred thirty-two thousand, five hundred fifty-six".