12444252125 has 16 divisors (see below), whose sum is σ = 15667881840. Its totient is φ = 9867289600.

The previous prime is 12444252101. The next prime is 12444252133. The reversal of 12444252125 is 52125244421.

It can be written as a sum of positive squares in 8 ways, for example, as 11550660676 + 893591449 = 107474^2 + 29893^2 .

It is not a de Polignac number, because 12444252125 - 2¹⁰ = 12444251101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12444252091 and 12444252100.

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, 426380 + ... + 454629.

It is an arithmetic number, because the mean of its divisors is an integer number (979242615).

Almost surely, 2^12444252125 is an apocalyptic number.

It is an amenable number.

12444252125 is a deficient number, since it is larger than the sum of its proper divisors (3223629715).

12444252125 is an equidigital number, since it uses as much as digits as its factorization.

12444252125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881137 (or 881127 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

Adding to 12444252125 its reverse (52125244421), we get a palindrome (64569496546).

The spelling of 12444252125 in words is "twelve billion, four hundred forty-four million, two hundred fifty-two thousand, one hundred twenty-five".