22525665 has 16 divisors (see below), whose sum is σ = 36499200. Its totient is φ = 11860992.

The previous prime is 22525661. The next prime is 22525667. The reversal of 22525665 is 56652522.

It is not a de Polignac number, because 22525665 - 2² = 22525661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22525661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8320 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (2281200).

Almost surely, 2^22525665 is an apocalyptic number.

It is an amenable number.

22525665 is a deficient number, since it is larger than the sum of its proper divisors (13973535).

22525665 is a wasteful number, since it uses less digits than its factorization.

22525665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19096.

The product of its digits is 36000, while the sum is 33.

The square root of 22525665 is about 4746.1210477610. The cubic root of 22525665 is about 282.4181087198.

The spelling of 22525665 in words is "twenty-two million, five hundred twenty-five thousand, six hundred sixty-five".