22532565 has 64 divisors (see below), whose sum is σ = 43234560. Its totient is φ = 9891840.

The previous prime is 22532561. The next prime is 22532581. The reversal of 22532565 is 56523522.

It is not a de Polignac number, because 22532565 - 2² = 22532561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81207 + ... + 81483.

It is an arithmetic number, because the mean of its divisors is an integer number (675540).

Almost surely, 2^22532565 is an apocalyptic number.

It is an amenable number.

22532565 is a deficient number, since it is larger than the sum of its proper divisors (20701995).

22532565 is a wasteful number, since it uses less digits than its factorization.

22532565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342.

The product of its digits is 18000, while the sum is 30.

The square root of 22532565 is about 4746.8479015026. The cubic root of 22532565 is about 282.4469422898.

The spelling of 22532565 in words is "twenty-two million, five hundred thirty-two thousand, five hundred sixty-five".