25004920672 has 96 divisors (see below), whose sum is σ = 52115374080. Its totient is φ = 11786227200.

The previous prime is 25004920643. The next prime is 25004920693. The reversal of 25004920672 is 27602940052.

It is a happy number.

It is a congruent number.

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, 19549729 + ... + 19551007.

It is an arithmetic number, because the mean of its divisors is an integer number (542868480).

Almost surely, 2^25004920672 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 25004920672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26057687040).

25004920672 is an abundant number, since it is smaller than the sum of its proper divisors (27110453408).

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

25004920672 is a wasteful number, since it uses less digits than its factorization.

25004920672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1668 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 25004920672 in words is "twenty-five billion, four million, nine hundred twenty thousand, six hundred seventy-two".