12525131305 has 16 divisors (see below), whose sum is σ = 15197495040. Its totient is φ = 9908716032.

The previous prime is 12525131279. The next prime is 12525131323. The reversal of 12525131305 is 50313152521.

12525131305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12525131305 - 2¹¹ = 12525129257 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 624016 + ... + 643774.

It is an arithmetic number, because the mean of its divisors is an integer number (949843440).

Almost surely, 2^12525131305 is an apocalyptic number.

It is an amenable number.

12525131305 is a deficient number, since it is larger than the sum of its proper divisors (2672363735).

12525131305 is a wasteful number, since it uses less digits than its factorization.

12525131305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21168.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 12525131305 its reverse (50313152521), we get a palindrome (62838283826).

The spelling of 12525131305 in words is "twelve billion, five hundred twenty-five million, one hundred thirty-one thousand, three hundred five".