25115412672 has 672 divisors, whose sum is σ = 92434867200. Its totient is φ = 6351814656.

The previous prime is 25115412671. The next prime is 25115412691. The reversal of 25115412672 is 27621451152.

25115412672 is a `hidden beast` number, since 2 + 51 + 1 + 541 + 2 + 67 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (33600) is a multiple of the sum of its prime divisors (320).

It is not an unprimeable number, because it can be changed into a prime (25115412671) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140309479 + ... + 140309657.

Almost surely, 2^25115412672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25115412672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46217433600).

25115412672 is an abundant number, since it is smaller than the sum of its proper divisors (67319454528).

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

25115412672 is a wasteful number, since it uses less digits than its factorization.

25115412672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 320 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The spelling of 25115412672 in words is "twenty-five billion, one hundred fifteen million, four hundred twelve thousand, six hundred seventy-two".