25851303888 has 120 divisors (see below), whose sum is σ = 69639251136. Its totient is φ = 8262912000.

The previous prime is 25851303871. The next prime is 25851303937. The reversal of 25851303888 is 88830315852.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25851303888.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6093448 + ... + 6097688.

Almost surely, 2^25851303888 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 25851303888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34819625568).

25851303888 is an abundant number, since it is smaller than the sum of its proper divisors (43787947248).

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

25851303888 is a wasteful number, since it uses less digits than its factorization.

25851303888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461 (or 4426 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 25851303888 in words is "twenty-five billion, eight hundred fifty-one million, three hundred three thousand, eight hundred eighty-eight".