12542057725 has 12 divisors (see below), whose sum is σ = 15553847124. Its totient is φ = 10032552320.

The previous prime is 12542057701. The next prime is 12542057729. The reversal of 12542057725 is 52775024521.

It can be written as a sum of positive squares in 6 ways, for example, as 1578711289 + 10963346436 = 39733^2 + 104706^2 .

It is not a de Polignac number, because 12542057725 - 2⁷ = 12542057597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542057729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269907 + ... + 312943.

It is an arithmetic number, because the mean of its divisors is an integer number (1296153927).

Almost surely, 2^12542057725 is an apocalyptic number.

It is an amenable number.

12542057725 is a deficient number, since it is larger than the sum of its proper divisors (3011789399).

12542057725 is a wasteful number, since it uses less digits than its factorization.

12542057725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54704 (or 54699 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 12542057725 in words is "twelve billion, five hundred forty-two million, fifty-seven thousand, seven hundred twenty-five".