56685516 has 24 divisors (see below), whose sum is σ = 132415920. Its totient is φ = 18873792.

The previous prime is 56685511. The next prime is 56685521. The reversal of 56685516 is 61558665.

It is an interprime number because it is at equal distance from previous prime (56685511) and next prime (56685521).

It is not an unprimeable number, because it can be changed into a prime (56685511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11290 + ... + 15518.

It is an arithmetic number, because the mean of its divisors is an integer number (5517330).

Almost surely, 2^56685516 is an apocalyptic number.

It is an amenable number.

56685516 is an abundant number, since it is smaller than the sum of its proper divisors (75730404).

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

56685516 is a wasteful number, since it uses less digits than its factorization.

56685516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353 (or 5351 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 56685516 is about 7528.9784167575. The cubic root of 56685516 is about 384.1410343495.

The spelling of 56685516 in words is "fifty-six million, six hundred eighty-five thousand, five hundred sixteen".