56645622 has 64 divisors (see below), whose sum is σ = 140313600. Its totient is φ = 16791840.

The previous prime is 56645621. The next prime is 56645651. The reversal of 56645622 is 22654665.

56645622 is a `hidden beast` number, since 5 + 6 + 645 + 6 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56645621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26904 + ... + 28932.

It is an arithmetic number, because the mean of its divisors is an integer number (2192400).

Almost surely, 2^56645622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56645622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70156800).

56645622 is an abundant number, since it is smaller than the sum of its proper divisors (83667978).

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

56645622 is a wasteful number, since it uses less digits than its factorization.

56645622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2092 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 56645622 is about 7526.3285870337. The cubic root of 56645622 is about 384.0508965740.

The spelling of 56645622 in words is "fifty-six million, six hundred forty-five thousand, six hundred twenty-two".