13553544535513 has 2 divisors, whose sum is σ = 13553544535514. Its totient is φ = 13553544535512.

The previous prime is 13553544535471. The next prime is 13553544535543. The reversal of 13553544535513 is 31553544535531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11881002415689 + 1672542119824 = 3446883^2 + 1293268^2 .

It is a cyclic number.

It is not a de Polignac number, because 13553544535513 - 2⁹ = 13553544535001 is a prime.

It is a super-2 number, since 2×13553544535513² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13553544535543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776772267756 + 6776772267757.

It is an arithmetic number, because the mean of its divisors is an integer number (6776772267757).

Almost surely, 2^{13553544535513} is an apocalyptic number.

It is an amenable number.

13553544535513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553544535513 is an equidigital number, since it uses as much as digits as its factorization.

13553544535513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250000, while the sum is 52.

The spelling of 13553544535513 in words is "thirteen trillion, five hundred fifty-three billion, five hundred forty-four million, five hundred thirty-five thousand, five hundred thirteen".