56409960 has 32 divisors (see below), whose sum is σ = 169230240. Its totient is φ = 15042624.

The previous prime is 56409929. The next prime is 56409979. The reversal of 56409960 is 6990465.

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, 234922 + ... + 235161.

It is an arithmetic number, because the mean of its divisors is an integer number (5288445).

Almost surely, 2^56409960 is an apocalyptic number.

It is an amenable number.

56409960 is an abundant number, since it is smaller than the sum of its proper divisors (112820280).

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

56409960 is a wasteful number, since it uses less digits than its factorization.

56409960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470097 (or 470093 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 56409960 is about 7510.6564293675. The cubic root of 56409960 is about 383.5175690743.

The spelling of 56409960 in words is "fifty-six million, four hundred nine thousand, nine hundred sixty".