55912680 has 80 divisors (see below), whose sum is σ = 187939620. Its totient is φ = 14909184.

The previous prime is 55912673. The next prime is 55912709. The reversal of 55912680 is 8621955.

It is a happy number.

55912680 is a `hidden beast` number, since 5 + 591 + 2 + 68 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48525156 + 7387524 = 6966^2 + 2718^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5389 + ... + 11868.

Almost surely, 2^55912680 is an apocalyptic number.

It is an amenable number.

55912680 is an abundant number, since it is smaller than the sum of its proper divisors (132026940).

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

55912680 is a wasteful number, since it uses less digits than its factorization.

55912680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17280 (or 17267 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 55912680 is about 7477.4781845218. The cubic root of 55912680 is about 382.3872793572.

The spelling of 55912680 in words is "fifty-five million, nine hundred twelve thousand, six hundred eighty".