12725173585 has 4 divisors (see below), whose sum is σ = 15270208308. Its totient is φ = 10180138864.

The previous prime is 12725173553. The next prime is 12725173619. The reversal of 12725173585 is 58537152721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58537152721 = 1901 ⋅30792821.

It can be written as a sum of positive squares in 2 ways, for example, as 9794467089 + 2930706496 = 98967^2 + 54136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12725173585 - 2⁵ = 12725173553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272517354 + ... + 1272517363.

It is an arithmetic number, because the mean of its divisors is an integer number (3817552077).

Almost surely, 2^12725173585 is an apocalyptic number.

It is an amenable number.

12725173585 is a deficient number, since it is larger than the sum of its proper divisors (2545034723).

12725173585 is an equidigital number, since it uses as much as digits as its factorization.

12725173585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545034722.

The product of its digits is 588000, while the sum is 46.

The spelling of 12725173585 in words is "twelve billion, seven hundred twenty-five million, one hundred seventy-three thousand, five hundred eighty-five".