22225252 has 48 divisors (see below), whose sum is σ = 46609920. Its totient is φ = 9072000.

The previous prime is 22225211. The next prime is 22225277. The reversal of 22225252 is 25252222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81877 + ... + 82147.

It is an arithmetic number, because the mean of its divisors is an integer number (971040).

Almost surely, 2^22225252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22225252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23304960).

22225252 is an abundant number, since it is smaller than the sum of its proper divisors (24384668).

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

22225252 is a wasteful number, since it uses less digits than its factorization.

22225252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 1600, while the sum is 22.

The square root of 22225252 is about 4714.3665534195. The cubic root of 22225252 is about 281.1569982544.

Adding to 22225252 its reverse (25252222), we get a palindrome (47477474).

The spelling of 22225252 in words is "twenty-two million, two hundred twenty-five thousand, two hundred fifty-two".