25079632512 has 128 divisors (see below), whose sum is σ = 72777424320. Its totient is φ = 7589068800.

The previous prime is 25079632499. The next prime is 25079632553. The reversal of 25079632512 is 21523697052.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3261312 + ... + 3268992.

Almost surely, 2^25079632512 is an apocalyptic number.

25079632512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25079632512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36388712160).

25079632512 is an abundant number, since it is smaller than the sum of its proper divisors (47697791808).

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

25079632512 is a wasteful number, since it uses less digits than its factorization.

25079632512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8482 (or 8470 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 25079632512 in words is "twenty-five billion, seventy-nine million, six hundred thirty-two thousand, five hundred twelve".