25808696260 has 12 divisors (see below), whose sum is σ = 54198262188. Its totient is φ = 10323478496.

The previous prime is 25808696257. The next prime is 25808696261. The reversal of 25808696260 is 6269680852.

It can be written as a sum of positive squares in 2 ways, for example, as 7169347584 + 18639348676 = 84672^2 + 136526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25808696198 and 25808696207.

It is not an unprimeable number, because it can be changed into a prime (25808696261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645217387 + ... + 645217426.

It is an arithmetic number, because the mean of its divisors is an integer number (4516521849).

Almost surely, 2^25808696260 is an apocalyptic number.

25808696260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25808696260 is an abundant number, since it is smaller than the sum of its proper divisors (28389565928).

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

25808696260 is a wasteful number, since it uses less digits than its factorization.

25808696260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290434822 (or 1290434820 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 25808696260 in words is "twenty-five billion, eight hundred eight million, six hundred ninety-six thousand, two hundred sixty".