22512522 has 24 divisors (see below), whose sum is σ = 47833056. Its totient is φ = 7062208.

The previous prime is 22512509. The next prime is 22512527. The reversal of 22512522 is 22521522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22512527) 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, 4758 + ... + 8225.

It is an arithmetic number, because the mean of its divisors is an integer number (1993044).

Almost surely, 2^22512522 is an apocalyptic number.

22512522 is an abundant number, since it is smaller than the sum of its proper divisors (25320534).

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

22512522 is a wasteful number, since it uses less digits than its factorization.

22512522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13022 (or 13005 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 22512522 is about 4744.7362413521. The cubic root of 22512522 is about 282.3631707436.

The spelling of 22512522 in words is "twenty-two million, five hundred twelve thousand, five hundred twenty-two".