22525764 has 12 divisors (see below), whose sum is σ = 52560144. Its totient is φ = 7508584.

The previous prime is 22525739. The next prime is 22525771. The reversal of 22525764 is 46752522.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938562 + ... + 938585.

It is an arithmetic number, because the mean of its divisors is an integer number (4380012).

Almost surely, 2^22525764 is an apocalyptic number.

It is an amenable number.

22525764 is an abundant number, since it is smaller than the sum of its proper divisors (30034380).

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

22525764 is a wasteful number, since it uses less digits than its factorization.

22525764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877154 (or 1877152 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 22525764 is about 4746.1314773192. The cubic root of 22525764 is about 282.4185224605.

The spelling of 22525764 in words is "twenty-two million, five hundred twenty-five thousand, seven hundred sixty-four".