27512625125 has 16 divisors (see below), whose sum is σ = 34357191024. Its totient is φ = 21996360000.

The previous prime is 27512625089. The next prime is 27512625187. The reversal of 27512625125 is 52152621572.

It can be written as a sum of positive squares in 8 ways, for example, as 15130722049 + 12381903076 = 123007^2 + 111274^2 .

It is not a de Polignac number, because 27512625125 - 2²⁴ = 27495847909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134735 + ... + 270515.

It is an arithmetic number, because the mean of its divisors is an integer number (2147324439).

Almost surely, 2^27512625125 is an apocalyptic number.

27512625125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27512625125 is a deficient number, since it is larger than the sum of its proper divisors (6844565899).

27512625125 is a wasteful number, since it uses less digits than its factorization.

27512625125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137417 (or 137407 counting only the distinct ones).

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

The spelling of 27512625125 in words is "twenty-seven billion, five hundred twelve million, six hundred twenty-five thousand, one hundred twenty-five".