22745565 has 48 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 11166336.

The previous prime is 22745563. The next prime is 22745587. The reversal of 22745565 is 56554722.

22745565 is a `hidden beast` number, since 22 + 74 + 5 + 565 = 666.

It is not a de Polignac number, because 22745565 - 2¹ = 22745563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22745561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31276 + ... + 31994.

It is an arithmetic number, because the mean of its divisors is an integer number (889200).

Almost surely, 2^22745565 is an apocalyptic number.

It is an amenable number.

22745565 is a deficient number, since it is larger than the sum of its proper divisors (19936035).

22745565 is a wasteful number, since it uses less digits than its factorization.

22745565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 783 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 22745565 is about 4769.2310700992. The cubic root of 22745565 is about 283.3341414817.

The spelling of 22745565 in words is "twenty-two million, seven hundred forty-five thousand, five hundred sixty-five".