25398056960 has 192 divisors, whose sum is σ = 66232857600. Its totient is φ = 9311846400.

The previous prime is 25398056947. The next prime is 25398056989. The reversal of 25398056960 is 6965089352.

It is a super-2 number, since 2×25398056960² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6029255 + ... + 6033465.

It is an arithmetic number, because the mean of its divisors is an integer number (344962800).

Almost surely, 2^25398056960 is an apocalyptic number.

25398056960 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 25398056960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33116428800).

25398056960 is an abundant number, since it is smaller than the sum of its proper divisors (40834800640).

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

25398056960 is a wasteful number, since it uses less digits than its factorization.

25398056960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4288 (or 4268 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 25398056960 in words is "twenty-five billion, three hundred ninety-eight million, fifty-six thousand, nine hundred sixty".