55816956 has 36 divisors (see below), whose sum is σ = 151947432. Its totient is φ = 17174304.

The previous prime is 55816931. The next prime is 55816991. The reversal of 55816956 is 65961855.

It is a happy number.

55816956 is a `hidden beast` number, since 5 + 581 + 69 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59166 + ... + 60101.

It is an arithmetic number, because the mean of its divisors is an integer number (4220762).

Almost surely, 2^55816956 is an apocalyptic number.

It is an amenable number.

55816956 is an abundant number, since it is smaller than the sum of its proper divisors (96130476).

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

55816956 is a wasteful number, since it uses less digits than its factorization.

55816956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119290 (or 119285 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 55816956 is about 7471.0746214986. The cubic root of 55816956 is about 382.1689356313.

The spelling of 55816956 in words is "fifty-five million, eight hundred sixteen thousand, nine hundred fifty-six".