12725512520 has 128 divisors (see below), whose sum is σ = 34831503360. Its totient is φ = 4084592640.

The previous prime is 12725512511. The next prime is 12725512531. The reversal of 12725512520 is 2521552721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902162 + ... + 916158.

It is an arithmetic number, because the mean of its divisors is an integer number (272121120).

Almost surely, 2^12725512520 is an apocalyptic number.

12725512520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12725512520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17415751680).

12725512520 is an abundant number, since it is smaller than the sum of its proper divisors (22105990840).

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

12725512520 is a wasteful number, since it uses less digits than its factorization.

12725512520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14223 (or 14219 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 12725512520 in words is "twelve billion, seven hundred twenty-five million, five hundred twelve thousand, five hundred twenty".