25025917915968 has 112 divisors (see below), whose sum is σ = 66662928944640. Its totient is φ = 8285544093184.

The previous prime is 25025917915963. The next prime is 25025917915997. The reversal of 25025917915968 is 86951971952052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025917915961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40833943 + ... + 41442281.

It is an arithmetic number, because the mean of its divisors is an integer number (595204722720).

Almost surely, 2^{25025917915968} 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 25025917915968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33331464472320).

25025917915968 is an abundant number, since it is smaller than the sum of its proper divisors (41637011028672).

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

25025917915968 is a wasteful number, since it uses less digits than its factorization.

25025917915968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609804 (or 609794 counting only the distinct ones).

The product of its (nonzero) digits is 122472000, while the sum is 69.

The spelling of 25025917915968 in words is "twenty-five trillion, twenty-five billion, nine hundred seventeen million, nine hundred fifteen thousand, nine hundred sixty-eight".