25152274122 has 32 divisors (see below), whose sum is σ = 51146588160. Its totient is φ = 8244369840.

The previous prime is 25152274097. The next prime is 25152274139. The reversal of 25152274122 is 22147225152.

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, 86079 + ... + 240237.

It is an arithmetic number, because the mean of its divisors is an integer number (1598330880).

Almost surely, 2^25152274122 is an apocalyptic number.

25152274122 is an abundant number, since it is smaller than the sum of its proper divisors (25994314038).

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

25152274122 is a wasteful number, since it uses less digits than its factorization.

25152274122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154618.

The product of its digits is 22400, while the sum is 33.

Adding to 25152274122 its reverse (22147225152), we get a palindrome (47299499274).

The spelling of 25152274122 in words is "twenty-five billion, one hundred fifty-two million, two hundred seventy-four thousand, one hundred twenty-two".