56509662 has 48 divisors (see below), whose sum is σ = 125120016. Its totient is φ = 17001600.

The previous prime is 56509657. The next prime is 56509711. The reversal of 56509662 is 26690565.

It is a self number, because there is not a number n which added to its sum of digits gives 56509662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200962 + ... + 201242.

It is an arithmetic number, because the mean of its divisors is an integer number (2606667).

Almost surely, 2^56509662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56509662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62560008).

56509662 is an abundant number, since it is smaller than the sum of its proper divisors (68610354).

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

56509662 is a wasteful number, since it uses less digits than its factorization.

56509662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 56509662 is about 7517.2908683914. The cubic root of 56509662 is about 383.7433859520.

The spelling of 56509662 in words is "fifty-six million, five hundred nine thousand, six hundred sixty-two".