55715760 has 60 divisors (see below), whose sum is σ = 187114512. Its totient is φ = 14857344.

The previous prime is 55715731. The next prime is 55715767. The reversal of 55715760 is 6751755.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is not an unprimeable number, because it can be changed into a prime (55715767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37972 + ... + 39411.

Almost surely, 2^55715760 is an apocalyptic number.

It is an amenable number.

55715760 is an abundant number, since it is smaller than the sum of its proper divisors (131398752).

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

55715760 is a wasteful number, since it uses less digits than its factorization.

55715760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77402 (or 77393 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 55715760 is about 7464.2990293798. The cubic root of 55715760 is about 381.9378388113.

The spelling of 55715760 in words is "fifty-five million, seven hundred fifteen thousand, seven hundred sixty".