22566132 has 18 divisors (see below), whose sum is σ = 57042258. Its totient is φ = 7522032.

The previous prime is 22566107. The next prime is 22566133. The reversal of 22566132 is 23166522.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 41616 = 4746^2 + 204^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 22566096 and 22566105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22566133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313383 + ... + 313454.

Almost surely, 2^22566132 is an apocalyptic number.

It is an amenable number.

22566132 is an abundant number, since it is smaller than the sum of its proper divisors (34476126).

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

22566132 is a wasteful number, since it uses less digits than its factorization.

22566132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626847 (or 626842 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22566132 is about 4750.3823004049. The cubic root of 22566132 is about 282.5871274318.

The spelling of 22566132 in words is "twenty-two million, five hundred sixty-six thousand, one hundred thirty-two".