22500999 has 12 divisors (see below), whose sum is σ = 32550336. Its totient is φ = 14978112.

The previous prime is 22500967. The next prime is 22501019. The reversal of 22500999 is 99900522.

It is not a de Polignac number, because 22500999 - 2⁵ = 22500967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502999) 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, 6319 + ... + 9215.

It is an arithmetic number, because the mean of its divisors is an integer number (2712528).

Almost surely, 2^22500999 is an apocalyptic number.

22500999 is a deficient number, since it is larger than the sum of its proper divisors (10049337).

22500999 is a wasteful number, since it uses less digits than its factorization.

22500999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766 (or 3763 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 22500999 is about 4743.5217929298. The cubic root of 22500999 is about 282.3149868024.

The spelling of 22500999 in words is "twenty-two million, five hundred thousand, nine hundred ninety-nine".