25233587328 has 128 divisors (see below), whose sum is σ = 69737840640. Its totient is φ = 8075289600.

The previous prime is 25233587311. The next prime is 25233587341. The reversal of 25233587328 is 82378533252.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1503463 + ... + 1520153.

It is an arithmetic number, because the mean of its divisors is an integer number (544826880).

Almost surely, 2^25233587328 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 25233587328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34868920320).

25233587328 is an abundant number, since it is smaller than the sum of its proper divisors (44504253312).

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

25233587328 is a wasteful number, since it uses less digits than its factorization.

25233587328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16866 (or 16854 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The spelling of 25233587328 in words is "twenty-five billion, two hundred thirty-three million, five hundred eighty-seven thousand, three hundred twenty-eight".