56665622 has 24 divisors (see below), whose sum is σ = 92967168. Its totient is φ = 25749360.

The previous prime is 56665621. The next prime is 56665627. The reversal of 56665622 is 22656665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56665621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432497 + ... + 432627.

It is an arithmetic number, because the mean of its divisors is an integer number (3873632).

Almost surely, 2^56665622 is an apocalyptic number.

56665622 is a deficient number, since it is larger than the sum of its proper divisors (36301546).

56665622 is a wasteful number, since it uses less digits than its factorization.

56665622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 273 counting only the distinct ones).

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

The square root of 56665622 is about 7527.6571388447. The cubic root of 56665622 is about 384.0960904999.

The spelling of 56665622 in words is "fifty-six million, six hundred sixty-five thousand, six hundred twenty-two".