22532665 has 8 divisors (see below), whose sum is σ = 27068040. Its totient is φ = 18006912.

The previous prime is 22532659. The next prime is 22532669. The reversal of 22532665 is 56623522.

It can be written as a sum of positive squares in 4 ways, for example, as 602176 + 21930489 = 776^2 + 4683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22532665 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22532669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (3383505).

Almost surely, 2^22532665 is an apocalyptic number.

It is an amenable number.

22532665 is a deficient number, since it is larger than the sum of its proper divisors (4535375).

22532665 is a wasteful number, since it uses less digits than its factorization.

22532665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

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

The square root of 22532665 is about 4746.8584347966. The cubic root of 22532665 is about 282.4473601243.

The spelling of 22532665 in words is "twenty-two million, five hundred thirty-two thousand, six hundred sixty-five".