13335531242525 has 12 divisors (see below), whose sum is σ = 16585127174772. Its totient is φ = 10636767939840.

The previous prime is 13335531242479. The next prime is 13335531242533. The reversal of 13335531242525 is 52524213553331.

It can be written as a sum of positive squares in 6 ways, for example, as 36628983769 + 13298902258756 = 191387^2 + 3646766^2 .

It is not a de Polignac number, because 13335531242525 - 2²⁰ = 13335530193949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 791417762 + ... + 791434611.

It is an arithmetic number, because the mean of its divisors is an integer number (1382093931231).

Almost surely, 2^{13335531242525} is an apocalyptic number.

It is an amenable number.

13335531242525 is a deficient number, since it is larger than the sum of its proper divisors (3249595932247).

13335531242525 is a wasteful number, since it uses less digits than its factorization.

13335531242525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582852720 (or 1582852715 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 44.

Adding to 13335531242525 its reverse (52524213553331), we get a palindrome (65859744795856).

The spelling of 13335531242525 in words is "thirteen trillion, three hundred thirty-five billion, five hundred thirty-one million, two hundred forty-two thousand, five hundred twenty-five".