25908090000 has 200 divisors, whose sum is σ = 90069568512. Its totient is φ = 6377280000.

The previous prime is 25908089989. The next prime is 25908090023. The reversal of 25908090000 is 9080952.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 356785 + ... + 423215.

Almost surely, 2^25908090000 is an apocalyptic number.

25908090000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25908090000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45034784256).

25908090000 is an abundant number, since it is smaller than the sum of its proper divisors (64161478512).

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

25908090000 is a wasteful number, since it uses less digits than its factorization.

25908090000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66475 (or 66454 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 25908090000 in words is "twenty-five billion, nine hundred eight million, ninety thousand".