25813532812804 has 27 divisors (see below), whose sum is σ = 49653932049813. Its totient is φ = 11733373198800.

The previous prime is 25813532812733. The next prime is 25813532812867. The reversal of 25813532812804 is 40821823531852.

The square root of 25813532812804 is 5080702.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 187663972804 + 25625868840000 = 433202^2 + 5062200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 111659974 + ... + 111890914.

Almost surely, 2^{25813532812804} is an apocalyptic number.

25813532812804 is the 5080702-nd square number.

It is an amenable number.

25813532812804 is a deficient number, since it is larger than the sum of its proper divisors (23840399237009).

25813532812804 is an frugal number, since it uses more digits than its factorization.

25813532812804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461908 (or 230954 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 25813532812804 in words is "twenty-five trillion, eight hundred thirteen billion, five hundred thirty-two million, eight hundred twelve thousand, eight hundred four".