25135249118922 has 288 divisors, whose sum is σ = 58378654309248. Its totient is φ = 7813595522304.

The previous prime is 25135249118893. The next prime is 25135249118929. The reversal of 25135249118922 is 22981194253152.

It is a happy number.

25135249118922 is a `hidden beast` number, since 2 + 5 + 1 + 3 + 52 + 491 + 1 + 89 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (25135249118929) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20721556788 + ... + 20721558000.

It is an arithmetic number, because the mean of its divisors is an integer number (202703660796).

Almost surely, 2^{25135249118922} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25135249118922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29189327154624).

25135249118922 is an abundant number, since it is smaller than the sum of its proper divisors (33243405190326).

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

25135249118922 is a wasteful number, since it uses less digits than its factorization.

25135249118922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1648 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 25135249118922 in words is "twenty-five trillion, one hundred thirty-five billion, two hundred forty-nine million, one hundred eighteen thousand, nine hundred twenty-two".