22525412 has 48 divisors (see below), whose sum is σ = 51085440. Its totient is φ = 8439552.

The previous prime is 22525411. The next prime is 22525427. The reversal of 22525412 is 21452522.

It is not an unprimeable number, because it can be changed into a prime (22525411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5288 + ... + 8544.

It is an arithmetic number, because the mean of its divisors is an integer number (1064280).

Almost surely, 2^22525412 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 22525412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25542720).

22525412 is an abundant number, since it is smaller than the sum of its proper divisors (28560028).

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

22525412 is a wasteful number, since it uses less digits than its factorization.

22525412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300 (or 3298 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 22525412 is about 4746.0943943415. The cubic root of 22525412 is about 282.4170513770.

Adding to 22525412 its reverse (21452522), we get a palindrome (43977934).

The spelling of 22525412 in words is "twenty-two million, five hundred twenty-five thousand, four hundred twelve".