55866560 has 28 divisors (see below), whose sum is σ = 133033008. Its totient is φ = 22346496.

The previous prime is 55866541. The next prime is 55866581. The reversal of 55866560 is 6566855.

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 3 ways as a sum of consecutive naturals, for example, 86972 + ... + 87611.

Almost surely, 2^55866560 is an apocalyptic number.

It is an amenable number.

55866560 is an abundant number, since it is smaller than the sum of its proper divisors (77166448).

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

55866560 is a wasteful number, since it uses less digits than its factorization.

55866560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174600 (or 174590 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 55866560 is about 7474.3936208899. The cubic root of 55866560 is about 382.2821120825.

The spelling of 55866560 in words is "fifty-five million, eight hundred sixty-six thousand, five hundred sixty".