12554109725 has 24 divisors (see below), whose sum is σ = 15632041152. Its totient is φ = 10001491200.

The previous prime is 12554109721. The next prime is 12554109751. The reversal of 12554109725 is 52790145521.

It is not a de Polignac number, because 12554109725 - 2² = 12554109721 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554109721) 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, 11506430 + ... + 11507520.

It is an arithmetic number, because the mean of its divisors is an integer number (651335048).

Almost surely, 2^12554109725 is an apocalyptic number.

It is an amenable number.

12554109725 is a deficient number, since it is larger than the sum of its proper divisors (3077931427).

12554109725 is a wasteful number, since it uses less digits than its factorization.

12554109725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597 (or 2592 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 12554109725 in words is "twelve billion, five hundred fifty-four million, one hundred nine thousand, seven hundred twenty-five".