22585005 has 12 divisors (see below), whose sum is σ = 39147420. Its totient is φ = 12045312.

The previous prime is 22584983. The next prime is 22585007. The reversal of 22585005 is 50058522.

It can be written as a sum of positive squares in 2 ways, for example, as 17413929 + 5171076 = 4173^2 + 2274^2 .

It is not a de Polignac number, because 22585005 - 2⁹ = 22584493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22585005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22585007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250900 + ... + 250989.

It is an arithmetic number, because the mean of its divisors is an integer number (3262285).

Almost surely, 2^22585005 is an apocalyptic number.

It is an amenable number.

22585005 is a deficient number, since it is larger than the sum of its proper divisors (16562415).

22585005 is a wasteful number, since it uses less digits than its factorization.

22585005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501900 (or 501897 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 22585005 is about 4752.3683569353. The cubic root of 22585005 is about 282.6658852909.

The spelling of 22585005 in words is "twenty-two million, five hundred eighty-five thousand, five".