12500421325 has 48 divisors (see below), whose sum is σ = 18637807104. Its totient is φ = 8136460800.

The previous prime is 12500421313. The next prime is 12500421361. The reversal of 12500421325 is 52312400521.

12500421325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12500421325 - 2⁵ = 12500421293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 12500421325.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 241932 + ... + 289018.

It is an arithmetic number, because the mean of its divisors is an integer number (388287648).

Almost surely, 2^12500421325 is an apocalyptic number.

It is an amenable number.

12500421325 is a deficient number, since it is larger than the sum of its proper divisors (6137385779).

12500421325 is a wasteful number, since it uses less digits than its factorization.

12500421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47182 (or 47177 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12500421325 its reverse (52312400521), we get a palindrome (64812821846).

The spelling of 12500421325 in words is "twelve billion, five hundred million, four hundred twenty-one thousand, three hundred twenty-five".