55731856 has 10 divisors (see below), whose sum is σ = 107980502. Its totient is φ = 27865920.

The previous prime is 55731839. The next prime is 55731869. The reversal of 55731856 is 65813755.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 6170256 = 7040^2 + 2484^2 .

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 as a sum of consecutive naturals, namely, 1741605 + ... + 1741636.

Almost surely, 2^55731856 is an apocalyptic number.

It is an amenable number.

55731856 is a deficient number, since it is larger than the sum of its proper divisors (52248646).

55731856 is a wasteful number, since it uses less digits than its factorization.

55731856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483249 (or 3483243 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 55731856 is about 7465.3771505531. The cubic root of 55731856 is about 381.9746152370.

The spelling of 55731856 in words is "fifty-five million, seven hundred thirty-one thousand, eight hundred fifty-six".