22125858 has 16 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 7337456.

The previous prime is 22125841. The next prime is 22125863. The reversal of 22125858 is 85852122.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8178 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (2779920).

Almost surely, 2^22125858 is an apocalyptic number.

22125858 is an abundant number, since it is smaller than the sum of its proper divisors (22352862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22125858 is a wasteful number, since it uses less digits than its factorization.

22125858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18921.

The product of its digits is 12800, while the sum is 33.

The square root of 22125858 is about 4703.8131340435. The cubic root of 22125858 is about 280.7372492714.

The spelling of 22125858 in words is "twenty-two million, one hundred twenty-five thousand, eight hundred fifty-eight".