25125324222 has 16 divisors (see below), whose sum is σ = 50289229440. Its totient is φ = 8368677912.

The previous prime is 25125324173. The next prime is 25125324247. The reversal of 25125324222 is 22242352152.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25125324222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1599072 + ... + 1614707.

It is an arithmetic number, because the mean of its divisors is an integer number (3143076840).

Almost surely, 2^25125324222 is an apocalyptic number.

25125324222 is an abundant number, since it is smaller than the sum of its proper divisors (25163905218).

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

25125324222 is a wasteful number, since it uses less digits than its factorization.

25125324222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215087.

The product of its digits is 19200, while the sum is 30.

Adding to 25125324222 its reverse (22242352152), we get a palindrome (47367676374).

The spelling of 25125324222 in words is "twenty-five billion, one hundred twenty-five million, three hundred twenty-four thousand, two hundred twenty-two".