25925925925925 has 12 divisors (see below), whose sum is σ = 32148511026180. Its totient is φ = 20740506625920.

The previous prime is 25925925925901. The next prime is 25925925925957. The reversal of 25925925925925 is 52952952952952.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1139398265476 + 24786527660449 = 1067426^2 + 4978607^2 .

It is not a de Polignac number, because 25925925925925 - 2¹² = 25925925921829 is a prime.

25925925925925 is a modest number, since divided by 925925925 gives 25925 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3576410 + ... + 8040059.

It is an arithmetic number, because the mean of its divisors is an integer number (2679042585515).

Almost surely, 2^{25925925925925} is an apocalyptic number.

25925925925925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25925925925925 is a deficient number, since it is larger than the sum of its proper divisors (6222585100255).

25925925925925 is a wasteful number, since it uses less digits than its factorization.

25925925925925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11705752 (or 11705747 counting only the distinct ones).

The product of its digits is 656100000, while the sum is 71.

The spelling of 25925925925925 in words is "twenty-five trillion, nine hundred twenty-five billion, nine hundred twenty-five million, nine hundred twenty-five thousand, nine hundred twenty-five".