12625012500 has 72 divisors (see below), whose sum is σ = 36820705824. Its totient is φ = 3366660000.

The previous prime is 12625012397. The next prime is 12625012507. The reversal of 12625012500 is 521052621.

It is a happy number.

It is a super-3 number, since 3×12625012500³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625012507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130834 + ... + 205833.

It is an arithmetic number, because the mean of its divisors is an integer number (511398692).

Almost surely, 2^12625012500 is an apocalyptic number.

12625012500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625012500 is an abundant number, since it is smaller than the sum of its proper divisors (24195693324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12625012500 is an equidigital number, since it uses as much as digits as its factorization.

12625012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336699 (or 336677 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 12625012500 in words is "twelve billion, six hundred twenty-five million, twelve thousand, five hundred".