25431495126 has 32 divisors (see below), whose sum is σ = 51177706848. Its totient is φ = 8424752640.

The previous prime is 25431495119. The next prime is 25431495139. The reversal of 25431495126 is 62159413452.

It is a congruent number.

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, 4831336 + ... + 4836596.

It is an arithmetic number, because the mean of its divisors is an integer number (1599303339).

Almost surely, 2^25431495126 is an apocalyptic number.

25431495126 is an abundant number, since it is smaller than the sum of its proper divisors (25746211722).

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

25431495126 is a wasteful number, since it uses less digits than its factorization.

25431495126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096.

The product of its digits is 259200, while the sum is 42.

The spelling of 25431495126 in words is "twenty-five billion, four hundred thirty-one million, four hundred ninety-five thousand, one hundred twenty-six".