22565632 has 36 divisors (see below), whose sum is σ = 45384976. Its totient is φ = 11197440.

The previous prime is 22565629. The next prime is 22565633. The reversal of 22565632 is 23656522.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22565594 and 22565603.

It is not an unprimeable number, because it can be changed into a prime (22565633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46093 + ... + 46579.

Almost surely, 2^22565632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22565632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22692488).

22565632 is an abundant number, since it is smaller than the sum of its proper divisors (22819344).

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

22565632 is an equidigital number, since it uses as much as digits as its factorization.

22565632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 670 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 22565632 is about 4750.3296727701. The cubic root of 22565632 is about 282.5850403128.

The spelling of 22565632 in words is "twenty-two million, five hundred sixty-five thousand, six hundred thirty-two".