25325523584 has 64 divisors (see below), whose sum is σ = 51077960640. Its totient is φ = 12506505216.

The previous prime is 25325523571. The next prime is 25325523589. The reversal of 25325523584 is 48532552352.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25325523589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6988397 + ... + 6992019.

It is an arithmetic number, because the mean of its divisors is an integer number (798093135).

Almost surely, 2^25325523584 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 25325523584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25538980320).

25325523584 is an abundant number, since it is smaller than the sum of its proper divisors (25752437056).

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

25325523584 is an equidigital number, since it uses as much as digits as its factorization.

25325523584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297 (or 4285 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 44.

The spelling of 25325523584 in words is "twenty-five billion, three hundred twenty-five million, five hundred twenty-three thousand, five hundred eighty-four".