56506646 has 32 divisors (see below), whose sum is σ = 103296000. Its totient is φ = 22643712.

The previous prime is 56506631. The next prime is 56506669. The reversal of 56506646 is 64660565.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19670 + ... + 22358.

It is an arithmetic number, because the mean of its divisors is an integer number (3228000).

Almost surely, 2^56506646 is an apocalyptic number.

56506646 is a deficient number, since it is larger than the sum of its proper divisors (46789354).

56506646 is a wasteful number, since it uses less digits than its factorization.

56506646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 56506646 is about 7517.0902615307. The cubic root of 56506646 is about 383.7365588561.

The spelling of 56506646 in words is "fifty-six million, five hundred six thousand, six hundred forty-six".