22525159 has 4 divisors (see below), whose sum is σ = 22950216. Its totient is φ = 22100104.

The previous prime is 22525157. The next prime is 22525201. The reversal of 22525159 is 95152522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22525159 - 2¹ = 22525157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22525159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212449 + ... + 212554.

It is an arithmetic number, because the mean of its divisors is an integer number (5737554).

Almost surely, 2^22525159 is an apocalyptic number.

22525159 is a deficient number, since it is larger than the sum of its proper divisors (425057).

22525159 is an equidigital number, since it uses as much as digits as its factorization.

22525159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425056.

The product of its digits is 9000, while the sum is 31.

The square root of 22525159 is about 4746.0677407724. The cubic root of 22525159 is about 282.4159940263.

The spelling of 22525159 in words is "twenty-two million, five hundred twenty-five thousand, one hundred fifty-nine".