22655488 has 20 divisors (see below), whose sum is σ = 45267750. Its totient is φ = 11327488.

The previous prime is 22655443. The next prime is 22655489. The reversal of 22655488 is 88455622.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 73984 = 4752^2 + 272^2 .

It is a super-2 number, since 2×22655488² = 1026542273036288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22655488.

It is not an unprimeable number, because it can be changed into a prime (22655489) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21613 + ... + 22636.

Almost surely, 2^22655488 is an apocalyptic number.

It is an amenable number.

22655488 is a deficient number, since it is larger than the sum of its proper divisors (22612262).

22655488 is an frugal number, since it uses more digits than its factorization.

22655488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44267 (or 44251 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 22655488 is about 4759.7781460904. The cubic root of 22655488 is about 282.9596266495.

The spelling of 22655488 in words is "twenty-two million, six hundred fifty-five thousand, four hundred eighty-eight".