25115851152 has 240 divisors, whose sum is σ = 82216487808. Its totient is φ = 7008768000.

The previous prime is 25115851151. The next prime is 25115851207.

It is a happy number.

25115851152 is a `hidden beast` number, since 2 + 5 + 11 + 585 + 11 + 52 = 666.

25115851152 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (25115851151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13408488 + ... + 13410360.

Almost surely, 2^25115851152 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 25115851152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41108243904).

25115851152 is an abundant number, since it is smaller than the sum of its proper divisors (57100636656).

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

25115851152 is a wasteful number, since it uses less digits than its factorization.

25115851152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2189 counting only the distinct ones).

The product of its digits is 20000, while the sum is 36.

The spelling of 25115851152 in words is "twenty-five billion, one hundred fifteen million, eight hundred fifty-one thousand, one hundred fifty-two".