25344521376 has 96 divisors (see below), whose sum is σ = 69564096000. Its totient is φ = 8064317184.

The previous prime is 25344521369. The next prime is 25344521387. The reversal of 25344521376 is 67312544352.

It is a tau number, because it is divible by the number of its divisors (96).

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, 1090291 + ... + 1113293.

It is an arithmetic number, because the mean of its divisors is an integer number (724626000).

Almost surely, 2^25344521376 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 25344521376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34782048000).

25344521376 is an abundant number, since it is smaller than the sum of its proper divisors (44219574624).

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

25344521376 is a wasteful number, since it uses less digits than its factorization.

25344521376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23538 (or 23530 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The spelling of 25344521376 in words is "twenty-five billion, three hundred forty-four million, five hundred twenty-one thousand, three hundred seventy-six".