25808053338 has 24 divisors (see below), whose sum is σ = 55930867200. Its totient is φ = 8600620104.

The previous prime is 25808053309. The next prime is 25808053357. The reversal of 25808053338 is 83335080852.

25808053338 is a `hidden beast` number, since 2 + 5 + 8 + 0 + 80 + 533 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25808053293 and 25808053302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93978 + ... + 245861.

It is an arithmetic number, because the mean of its divisors is an integer number (2330452800).

Almost surely, 2^25808053338 is an apocalyptic number.

25808053338 is an abundant number, since it is smaller than the sum of its proper divisors (30122813862).

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

25808053338 is a wasteful number, since it uses less digits than its factorization.

25808053338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344066 (or 344063 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 25808053338 in words is "twenty-five billion, eight hundred eight million, fifty-three thousand, three hundred thirty-eight".