22551859 has 6 divisors (see below), whose sum is σ = 24788540. Its totient is φ = 20501580.

The previous prime is 22551853. The next prime is 22551863. The reversal of 22551859 is 95815522.

It is not a de Polignac number, because 22551859 - 2⁵ = 22551827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22551853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93069 + ... + 93310.

Almost surely, 2^22551859 is an apocalyptic number.

22551859 is a deficient number, since it is larger than the sum of its proper divisors (2236681).

22551859 is a wasteful number, since it uses less digits than its factorization.

22551859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186401 (or 186390 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 22551859 is about 4748.8797626388. The cubic root of 22551859 is about 282.5275364079.

It can be divided in two parts, 2255 and 1859, that added together give a palindrome (4114).

The spelling of 22551859 in words is "twenty-two million, five hundred fifty-one thousand, eight hundred fifty-nine".