22525370 has 32 divisors (see below), whose sum is σ = 46908288. Its totient is φ = 7627968.

The previous prime is 22525369. The next prime is 22525387. The reversal of 22525370 is 7352522.

It is a Curzon number.

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, 3872 + ... + 7748.

It is an arithmetic number, because the mean of its divisors is an integer number (1465884).

Almost surely, 2^22525370 is an apocalyptic number.

22525370 is an abundant number, since it is smaller than the sum of its proper divisors (24382918).

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

22525370 is a wasteful number, since it uses less digits than its factorization.

22525370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22525370 is about 4746.0899696487. The cubic root of 22525370 is about 282.4168758490.

Adding to 22525370 its reverse (7352522), we get a palindrome (29877892).

The spelling of 22525370 in words is "twenty-two million, five hundred twenty-five thousand, three hundred seventy".