56622664 has 32 divisors (see below), whose sum is σ = 121968000. Its totient is φ = 24140160.

The previous prime is 56622661. The next prime is 56622689. The reversal of 56622664 is 46622665.

It is a happy number.

It is a super-2 number, since 2×56622664² = 6412252156913792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56622661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8604 + ... + 13684.

It is an arithmetic number, because the mean of its divisors is an integer number (3811500).

Almost surely, 2^56622664 is an apocalyptic number.

It is an amenable number.

56622664 is an abundant number, since it is smaller than the sum of its proper divisors (65345336).

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

56622664 is a wasteful number, since it uses less digits than its factorization.

56622664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293 (or 5289 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 56622664 is about 7524.8032532419. The cubic root of 56622664 is about 383.9990053504. Note that the first 3 decimals are identical.

Subtracting from 56622664 its reverse (46622665), we obtain a palindrome (9999999).

The spelling of 56622664 in words is "fifty-six million, six hundred twenty-two thousand, six hundred sixty-four".