55231856 has 10 divisors (see below), whose sum is σ = 107011752. Its totient is φ = 27615920.

The previous prime is 55231849. The next prime is 55231871. The reversal of 55231856 is 65813255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725980 + ... + 1726011.

Almost surely, 2^55231856 is an apocalyptic number.

It is an amenable number.

55231856 is a deficient number, since it is larger than the sum of its proper divisors (51779896).

55231856 is a wasteful number, since it uses less digits than its factorization.

55231856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451999 (or 3451993 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 55231856 is about 7431.8137759231. The cubic root of 55231856 is about 380.8288831869.

The spelling of 55231856 in words is "fifty-five million, two hundred thirty-one thousand, eight hundred fifty-six".