25464222 has 36 divisors (see below), whose sum is σ = 64182456. Its totient is φ = 7275240.

The previous prime is 25464191. The next prime is 25464247. The reversal of 25464222 is 22246452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13554 + ... + 15317.

It is an arithmetic number, because the mean of its divisors is an integer number (1782846).

Almost surely, 2^25464222 is an apocalyptic number.

25464222 is an abundant number, since it is smaller than the sum of its proper divisors (38718234).

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

25464222 is a wasteful number, since it uses less digits than its factorization.

25464222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28893 (or 28883 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 25464222 is about 5046.2086758278. The cubic root of 25464222 is about 294.2005434462.

The spelling of 25464222 in words is "twenty-five million, four hundred sixty-four thousand, two hundred twenty-two".