56097960 has 128 divisors (see below), whose sum is σ = 180558720. Its totient is φ = 13893632.

The previous prime is 56097953. The next prime is 56097971. The reversal of 56097960 is 6979065.

It is a super-2 number, since 2×56097960² = 6293962232323200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218152 + ... + 218408.

It is an arithmetic number, because the mean of its divisors is an integer number (1410615).

Almost surely, 2^56097960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56097960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90279360).

56097960 is an abundant number, since it is smaller than the sum of its proper divisors (124460760).

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

56097960 is a wasteful number, since it uses less digits than its factorization.

56097960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 56097960 is about 7489.8571414948. The cubic root of 56097960 is about 382.8091908141.

The spelling of 56097960 in words is "fifty-six million, ninety-seven thousand, nine hundred sixty".