25930285056 has 420 divisors, whose sum is σ = 84235306512. Its totient is φ = 7930773504.

The previous prime is 25930285027. The next prime is 25930285061. The reversal of 25930285056 is 65058203952.

25930285056 is a `hidden beast` number, since 2 + 593 + 0 + 2 + 8 + 5 + 0 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 155271085 + ... + 155271251.

Almost surely, 2^25930285056 is an apocalyptic number.

25930285056 is a gapful number since it is divisible by the number (26) 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 25930285056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42117653256).

25930285056 is an abundant number, since it is smaller than the sum of its proper divisors (58305021456).

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

25930285056 is an frugal number, since it uses more digits than its factorization.

25930285056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 25930285056 in words is "twenty-five billion, nine hundred thirty million, two hundred eighty-five thousand, fifty-six".