12125050025 has 36 divisors (see below), whose sum is σ = 16566098556. Its totient is φ = 8796902400.

The previous prime is 12125050009. The next prime is 12125050061. The reversal of 12125050025 is 52005052121.

12125050025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 4223440144 + 7901609881 = 64988^2 + 88891^2 .

It is not a de Polignac number, because 12125050025 - 2⁴ = 12125050009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1305197 + ... + 1314453.

Almost surely, 2^12125050025 is an apocalyptic number.

It is an amenable number.

12125050025 is a deficient number, since it is larger than the sum of its proper divisors (4441048531).

12125050025 is a wasteful number, since it uses less digits than its factorization.

12125050025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722 (or 9706 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

It can be divided in two parts, 121 and 25050025, that multiplied together give a square (3031053025 = 55055²).

The spelling of 12125050025 in words is "twelve billion, one hundred twenty-five million, fifty thousand, twenty-five".