25056000000 has 672 divisors, whose sum is σ = 95975334000. Its totient is φ = 6451200000.

The previous prime is 25055999989. The next prime is 25056000023. The reversal of 25056000000 is 65052.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 863999986 + ... + 864000014.

Almost surely, 2^25056000000 is an apocalyptic number.

25056000000 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 25056000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47987667000).

25056000000 is an abundant number, since it is smaller than the sum of its proper divisors (70919334000).

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

25056000000 is an frugal number, since it uses more digits than its factorization.

25056000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

Adding to 25056000000 its reverse (65052), we get a palindrome (25056065052).

The spelling of 25056000000 in words is "twenty-five billion, fifty-six million", and thus it is an aban number and an uban number.