56655642 has 8 divisors (see below), whose sum is σ = 113311296. Its totient is φ = 18885212.

The previous prime is 56655637. The next prime is 56655659. The reversal of 56655642 is 24655665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

56655642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 56655642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4721298 + ... + 4721309.

It is an arithmetic number, because the mean of its divisors is an integer number (14163912).

Almost surely, 2^56655642 is an apocalyptic number.

56655642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56655642 is a wasteful number, since it uses less digits than its factorization.

56655642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442612.

The product of its digits is 216000, while the sum is 39.

The square root of 56655642 is about 7526.9942208029. The cubic root of 56655642 is about 384.0735400604.

The spelling of 56655642 in words is "fifty-six million, six hundred fifty-five thousand, six hundred forty-two".