25139273472 has 54 divisors (see below), whose sum is σ = 72482729592. Its totient is φ = 8379757056.

The previous prime is 25139273459. The next prime is 25139273491. The reversal of 25139273472 is 27437293152.

25139273472 is a `hidden beast` number, since 2 + 513 + 92 + 7 + 3 + 47 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5453268 + ... + 5457875.

Almost surely, 2^25139273472 is an apocalyptic number.

It is an amenable number.

25139273472 is an abundant number, since it is smaller than the sum of its proper divisors (47343456120).

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

25139273472 is a wasteful number, since it uses less digits than its factorization.

25139273472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911165 (or 10911148 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The spelling of 25139273472 in words is "twenty-five billion, one hundred thirty-nine million, two hundred seventy-three thousand, four hundred seventy-two".