56500686 has 64 divisors (see below), whose sum is σ = 138954240. Its totient is φ = 16873920.

The previous prime is 56500637. The next prime is 56500687. The reversal of 56500686 is 68600565.

It is a self number, because there is not a number n which added to its sum of digits gives 56500686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56500687) 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, 42711 + ... + 44013.

It is an arithmetic number, because the mean of its divisors is an integer number (2171160).

Almost surely, 2^56500686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56500686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69477120).

56500686 is an abundant number, since it is smaller than the sum of its proper divisors (82453554).

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

56500686 is a wasteful number, since it uses less digits than its factorization.

56500686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 56500686 is about 7516.6938210892. The cubic root of 56500686 is about 383.7230669310.

The spelling of 56500686 in words is "fifty-six million, five hundred thousand, six hundred eighty-six".