56622860 has 24 divisors (see below), whose sum is σ = 135895200. Its totient is φ = 19413504.

The previous prime is 56622851. The next prime is 56622889. The reversal of 56622860 is 6822665.

It is a super-2 number, since 2×56622860² = 6412296549159200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 56622860.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202085 + ... + 202364.

It is an arithmetic number, because the mean of its divisors is an integer number (5662300).

Almost surely, 2^56622860 is an apocalyptic number.

It is an amenable number.

56622860 is an abundant number, since it is smaller than the sum of its proper divisors (79272340).

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

56622860 is a wasteful number, since it uses less digits than its factorization.

56622860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404465 (or 404463 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 56622860 is about 7524.8162768270. The cubic root of 56622860 is about 383.9994484222. Note that the first 3 decimals are identical.

The spelling of 56622860 in words is "fifty-six million, six hundred twenty-two thousand, eight hundred sixty".