26251275125 has 8 divisors (see below), whose sum is σ = 32761591512. Its totient is φ = 21001020000.

The previous prime is 26251275119. The next prime is 26251275133. The reversal of 26251275125 is 52157215262.

It can be written as a sum of positive squares in 4 ways, for example, as 463411729 + 25787863396 = 21527^2 + 160586^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26251275125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105004976 + ... + 105005225.

It is an arithmetic number, because the mean of its divisors is an integer number (4095198939).

Almost surely, 2^26251275125 is an apocalyptic number.

26251275125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26251275125 is a deficient number, since it is larger than the sum of its proper divisors (6510316387).

26251275125 is an equidigital number, since it uses as much as digits as its factorization.

26251275125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210010216 (or 210010206 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The spelling of 26251275125 in words is "twenty-six billion, two hundred fifty-one million, two hundred seventy-five thousand, one hundred twenty-five".