12523450125 has 32 divisors (see below), whose sum is σ = 21402261504. Its totient is φ = 6498648000.

The previous prime is 12523450117. The next prime is 12523450157. The reversal of 12523450125 is 52105432521.

It is not a de Polignac number, because 12523450125 - 2³ = 12523450117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12523450092 and 12523450101.

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 31 ways as a sum of consecutive naturals, for example, 437421 + ... + 465170.

It is an arithmetic number, because the mean of its divisors is an integer number (668820672).

Almost surely, 2^12523450125 is an apocalyptic number.

12523450125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12523450125 is a deficient number, since it is larger than the sum of its proper divisors (8878811379).

12523450125 is an equidigital number, since it uses as much as digits as its factorization.

12523450125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902646 (or 902636 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12523450125 its reverse (52105432521), we get a palindrome (64628882646).

The spelling of 12523450125 in words is "twelve billion, five hundred twenty-three million, four hundred fifty thousand, one hundred twenty-five".