12501401525 has 6 divisors (see below), whose sum is σ = 15501737922. Its totient is φ = 10001121200.

The previous prime is 12501401509. The next prime is 12501401581. The reversal of 12501401525 is 52510410521.

It can be written as a sum of positive squares in 3 ways, for example, as 763195876 + 11738205649 = 27626^2 + 108343^2 .

It is not a de Polignac number, because 12501401525 - 2⁴ = 12501401509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12501401494 and 12501401503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250028006 + ... + 250028055.

It is an arithmetic number, because the mean of its divisors is an integer number (2583622987).

Almost surely, 2^12501401525 is an apocalyptic number.

It is an amenable number.

12501401525 is a deficient number, since it is larger than the sum of its proper divisors (3000336397).

12501401525 is an equidigital number, since it uses as much as digits as its factorization.

12501401525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500056071 (or 500056066 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 12501401525 in words is "twelve billion, five hundred one million, four hundred one thousand, five hundred twenty-five".