22765005 has 24 divisors (see below), whose sum is σ = 40734720. Its totient is φ = 11748960.

The previous prime is 22764997. The next prime is 22765007. The reversal of 22765005 is 50056722.

22765005 is a `hidden beast` number, since 2 + 2 + 7 + 650 + 0 + 5 = 666.

It is not a de Polignac number, because 22765005 - 2³ = 22764997 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22765005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22765007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6765 + ... + 9554.

It is an arithmetic number, because the mean of its divisors is an integer number (1697280).

Almost surely, 2^22765005 is an apocalyptic number.

It is an amenable number.

22765005 is a deficient number, since it is larger than the sum of its proper divisors (17969715).

22765005 is a wasteful number, since it uses less digits than its factorization.

22765005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16361 (or 16358 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 22765005 is about 4771.2686992036. The cubic root of 22765005 is about 283.4148377592.

The spelling of 22765005 in words is "twenty-two million, seven hundred sixty-five thousand, five".