25322531142 has 32 divisors (see below), whose sum is σ = 51428328192. Its totient is φ = 8310433824.

The previous prime is 25322531131. The next prime is 25322531149. The reversal of 25322531142 is 24113522352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25322531149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787023 + ... + 818565.

It is an arithmetic number, because the mean of its divisors is an integer number (1607135256).

Almost surely, 2^25322531142 is an apocalyptic number.

25322531142 is an abundant number, since it is smaller than the sum of its proper divisors (26105797050).

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

25322531142 is a wasteful number, since it uses less digits than its factorization.

25322531142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33612.

The product of its digits is 14400, while the sum is 30.

The spelling of 25322531142 in words is "twenty-five billion, three hundred twenty-two million, five hundred thirty-one thousand, one hundred forty-two".