25512813312 has 288 divisors, whose sum is σ = 82527889920. Its totient is φ = 6834585600.

The previous prime is 25512813311. The next prime is 25512813341. The reversal of 25512813312 is 21331821552.

It is not an unprimeable number, because it can be changed into a prime (25512813311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10315308 + ... + 10317780.

Almost surely, 2^25512813312 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 25512813312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41263944960).

25512813312 is an abundant number, since it is smaller than the sum of its proper divisors (57015076608).

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

25512813312 is a wasteful number, since it uses less digits than its factorization.

25512813312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2605 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The spelling of 25512813312 in words is "twenty-five billion, five hundred twelve million, eight hundred thirteen thousand, three hundred twelve".