25464332608 has 224 divisors, whose sum is σ = 65216471040. Its totient is φ = 9680394240.

The previous prime is 25464332587. The next prime is 25464332639. The reversal of 25464332608 is 80623346452.

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 31 ways as a sum of consecutive naturals, for example, 3996241 + ... + 4002607.

It is an arithmetic number, because the mean of its divisors is an integer number (291144960).

Almost surely, 2^25464332608 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 25464332608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32608235520).

25464332608 is an abundant number, since it is smaller than the sum of its proper divisors (39752138432).

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

25464332608 is a wasteful number, since it uses less digits than its factorization.

25464332608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 25464332608 in words is "twenty-five billion, four hundred sixty-four million, three hundred thirty-two thousand, six hundred eight".