22547250 has 96 divisors (see below), whose sum is σ = 66583296. Its totient is φ = 5460000.

The previous prime is 22547233. The next prime is 22547269. The reversal of 22547250 is 5274522.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24295 + ... + 25205.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 2^22547250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22547250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33291648).

22547250 is an abundant number, since it is smaller than the sum of its proper divisors (44036046).

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

22547250 is a wasteful number, since it uses less digits than its factorization.

22547250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22547250 is about 4748.3944655009. The cubic root of 22547250 is about 282.5082880592.

It can be divided in two parts, 225472 and 50, that added together give a palindrome (225522).

The spelling of 22547250 in words is "twenty-two million, five hundred forty-seven thousand, two hundred fifty".