55731056 has 20 divisors (see below), whose sum is σ = 111463104. Its totient is φ = 26966400.

The previous prime is 55731041. The next prime is 55731079. The reversal of 55731056 is 65013755.

55731056 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55685 + ... + 56676.

Almost surely, 2^55731056 is an apocalyptic number.

It is an amenable number.

55731056 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55731056 is a wasteful number, since it uses less digits than its factorization.

55731056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112400 (or 112394 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 55731056 is about 7465.3235696787. The cubic root of 55731056 is about 381.9727875501.

It can be divided in two parts, 557 and 31056, that added together give a palindrome (31613).

The spelling of 55731056 in words is "fifty-five million, seven hundred thirty-one thousand, fifty-six".