55711056 has 80 divisors (see below), whose sum is σ = 149454720. Its totient is φ = 17871360.

The previous prime is 55711049. The next prime is 55711069. The reversal of 55711056 is 65011755.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155005 + ... + 155363.

It is an arithmetic number, because the mean of its divisors is an integer number (1868184).

Almost surely, 2^55711056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55711056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74727360).

55711056 is an abundant number, since it is smaller than the sum of its proper divisors (93743664).

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

55711056 is a wasteful number, since it uses less digits than its factorization.

55711056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 55711056 is about 7463.9839228123. The cubic root of 55711056 is about 381.9270896913.

The spelling of 55711056 in words is "fifty-five million, seven hundred eleven thousand, fifty-six".