56686716 has 30 divisors (see below), whose sum is σ = 148191120. Its totient is φ = 18895464.

The previous prime is 56686711. The next prime is 56686727. The reversal of 56686716 is 61768665.

56686716 is a `hidden beast` number, since 566 + 86 + 7 + 1 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686711) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87156 + ... + 87803.

It is an arithmetic number, because the mean of its divisors is an integer number (4939704).

Almost surely, 2^56686716 is an apocalyptic number.

It is an amenable number.

56686716 is an abundant number, since it is smaller than the sum of its proper divisors (91504404).

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

56686716 is a wasteful number, since it uses less digits than its factorization.

56686716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174975 (or 174964 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 56686716 is about 7529.0581084223. The cubic root of 56686716 is about 384.1437450125.

The spelling of 56686716 in words is "fifty-six million, six hundred eighty-six thousand, seven hundred sixteen".