55912560 has 80 divisors (see below), whose sum is σ = 189095040. Its totient is φ = 13553920.

The previous prime is 55912553. The next prime is 55912583. The reversal of 55912560 is 6521955.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 7950 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (2363688).

Almost surely, 2^55912560 is an apocalyptic number.

It is an amenable number.

55912560 is an abundant number, since it is smaller than the sum of its proper divisors (133182480).

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

55912560 is a wasteful number, since it uses less digits than its factorization.

55912560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21206 (or 21200 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 55912560 is about 7477.4701604219. The cubic root of 55912560 is about 382.3870057967.

The spelling of 55912560 in words is "fifty-five million, nine hundred twelve thousand, five hundred sixty".