13245315235533 has 12 divisors (see below), whose sum is σ = 19307646063420. Its totient is φ = 8749199054016.

The previous prime is 13245315235531. The next prime is 13245315235571. The reversal of 13245315235533 is 33553251354231.

13245315235533 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 5 + 31 + 52 + 35 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12130996429764 + 1114318805769 = 3482958^2 + 1055613^2 .

It is not a de Polignac number, because 13245315235533 - 2¹ = 13245315235531 is a prime.

It is a super-2 number, since 2×13245315235533² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245315235531) 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, 6750924216 + ... + 6750926177.

It is an arithmetic number, because the mean of its divisors is an integer number (1608970505285).

Almost surely, 2^{13245315235533} is an apocalyptic number.

It is an amenable number.

13245315235533 is a deficient number, since it is larger than the sum of its proper divisors (6062330827887).

13245315235533 is a wasteful number, since it uses less digits than its factorization.

13245315235533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501850508 (or 13501850505 counting only the distinct ones).

The product of its digits is 2430000, while the sum is 45.

Adding to 13245315235533 its reverse (33553251354231), we get a palindrome (46798566589764).

The spelling of 13245315235533 in words is "thirteen trillion, two hundred forty-five billion, three hundred fifteen million, two hundred thirty-five thousand, five hundred thirty-three".