12552121113425 has 6 divisors (see below), whose sum is σ = 15564630180678. Its totient is φ = 10041696890720.

The previous prime is 12552121113419. The next prime is 12552121113439. The reversal of 12552121113425 is 52431112125521.

It can be written as a sum of positive squares in 3 ways, for example, as 468043434769 + 12084077678656 = 684137^2 + 3476216^2 .

It is not a de Polignac number, because 12552121113425 - 2³⁶ = 12483401636689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251042422244 + ... + 251042422293.

It is an arithmetic number, because the mean of its divisors is an integer number (2594105030113).

Almost surely, 2^{12552121113425} is an apocalyptic number.

It is an amenable number.

12552121113425 is a deficient number, since it is larger than the sum of its proper divisors (3012509067253).

12552121113425 is an equidigital number, since it uses as much as digits as its factorization.

12552121113425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502084844547 (or 502084844542 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

Adding to 12552121113425 its reverse (52431112125521), we get a palindrome (64983233238946).

The spelling of 12552121113425 in words is "twelve trillion, five hundred fifty-two billion, one hundred twenty-one million, one hundred thirteen thousand, four hundred twenty-five".