25281578796 has 24 divisors (see below), whose sum is σ = 59018092224. Its totient is φ = 8423229840.

The previous prime is 25281578779. The next prime is 25281578797. The reversal of 25281578796 is 69787518252.

It is not an unprimeable number, because it can be changed into a prime (25281578797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468750 + ... + 519893.

It is an arithmetic number, because the mean of its divisors is an integer number (2459087176).

Almost surely, 2^25281578796 is an apocalyptic number.

It is an amenable number.

25281578796 is an abundant number, since it is smaller than the sum of its proper divisors (33736513428).

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

25281578796 is a wasteful number, since it uses less digits than its factorization.

25281578796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990781 (or 990779 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 60.

The spelling of 25281578796 in words is "twenty-five billion, two hundred eighty-one million, five hundred seventy-eight thousand, seven hundred ninety-six".