12520025411513 has 4 divisors (see below), whose sum is σ = 12521009625588. Its totient is φ = 12519041197440.

The previous prime is 12520025411503. The next prime is 12520025411519. The reversal of 12520025411513 is 31511452002521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4801480147984 + 7718545263529 = 2191228^2 + 2778227^2 .

It is a cyclic number.

It is not a de Polignac number, because 12520025411513 - 2⁴ = 12520025411497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12520025411513.

It is not an unprimeable number, because it can be changed into a prime (12520025411519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492087956 + ... + 492113397.

It is an arithmetic number, because the mean of its divisors is an integer number (3130252406397).

Almost surely, 2^{12520025411513} is an apocalyptic number.

It is an amenable number.

12520025411513 is a deficient number, since it is larger than the sum of its proper divisors (984214075).

12520025411513 is an equidigital number, since it uses as much as digits as its factorization.

12520025411513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984214074.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 12520025411513 in words is "twelve trillion, five hundred twenty billion, twenty-five million, four hundred eleven thousand, five hundred thirteen".