56487660 has 24 divisors (see below), whose sum is σ = 158165616. Its totient is φ = 15063360.

The previous prime is 56487643. The next prime is 56487689. The reversal of 56487660 is 6678465.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470671 + ... + 470790.

It is an arithmetic number, because the mean of its divisors is an integer number (6590234).

Almost surely, 2^56487660 is an apocalyptic number.

It is an amenable number.

56487660 is an abundant number, since it is smaller than the sum of its proper divisors (101677956).

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

56487660 is a wasteful number, since it uses less digits than its factorization.

56487660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941473 (or 941471 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 56487660 is about 7515.8272997721. The cubic root of 56487660 is about 383.6935760747.

The spelling of 56487660 in words is "fifty-six million, four hundred eighty-seven thousand, six hundred sixty".