25790318560 has 144 divisors (see below), whose sum is σ = 64509839856. Its totient is φ = 9737472000.

The previous prime is 25790318549. The next prime is 25790318579. The reversal of 25790318560 is 6581309752.

It is a self number, because there is not a number n which added to its sum of digits gives 25790318560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6302115 + ... + 6306205.

It is an arithmetic number, because the mean of its divisors is an integer number (447984999).

Almost surely, 2^25790318560 is an apocalyptic number.

25790318560 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 25790318560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32254919928).

25790318560 is an abundant number, since it is smaller than the sum of its proper divisors (38719521296).

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

25790318560 is a wasteful number, since it uses less digits than its factorization.

25790318560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 4170 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 25790318560 in words is "twenty-five billion, seven hundred ninety million, three hundred eighteen thousand, five hundred sixty".