56686371 has 32 divisors (see below), whose sum is σ = 89456640. Its totient is φ = 31258656.

The previous prime is 56686369. The next prime is 56686373. The reversal of 56686371 is 17368665.

It is an interprime number because it is at equal distance from previous prime (56686369) and next prime (56686373).

It is not a de Polignac number, because 56686371 - 2¹ = 56686369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56686373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77610 + ... + 78336.

It is an arithmetic number, because the mean of its divisors is an integer number (2795520).

Almost surely, 2^56686371 is an apocalyptic number.

56686371 is a deficient number, since it is larger than the sum of its proper divisors (32770269).

56686371 is a wasteful number, since it uses less digits than its factorization.

56686371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 181440, while the sum is 42.

The square root of 56686371 is about 7529.0351971551. The cubic root of 56686371 is about 384.1429657008.

The spelling of 56686371 in words is "fifty-six million, six hundred eighty-six thousand, three hundred seventy-one".