25939893952 has 112 divisors (see below), whose sum is σ = 59984640000. Its totient is φ = 10900491264.

The previous prime is 25939893937. The next prime is 25939894003.

It is a happy number.

25939893952 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5270949 + ... + 5275867.

Almost surely, 2^25939893952 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 25939893952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29992320000).

25939893952 is an abundant number, since it is smaller than the sum of its proper divisors (34044746048).

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

25939893952 is a wasteful number, since it uses less digits than its factorization.

25939893952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166 (or 5156 counting only the distinct ones).

The product of its digits is 47239200, while the sum is 64.

The spelling of 25939893952 in words is "twenty-five billion, nine hundred thirty-nine million, eight hundred ninety-three thousand, nine hundred fifty-two".