13553544535631 has 2 divisors, whose sum is σ = 13553544535632. Its totient is φ = 13553544535630.

The previous prime is 13553544535627. The next prime is 13553544535639. The reversal of 13553544535631 is 13653544535531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13553544535631 - 2² = 13553544535627 is a prime.

It is a super-2 number, since 2×13553544535631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13553544535639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776772267815 + 6776772267816.

It is an arithmetic number, because the mean of its divisors is an integer number (6776772267816).

Almost surely, 2^{13553544535631} is an apocalyptic number.

13553544535631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553544535631 is an equidigital number, since it uses as much as digits as its factorization.

13553544535631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300000, while the sum is 53.

It can be divided in two parts, 1355354 and 4535631, that added together give a palindrome (5890985).

The spelling of 13553544535631 in words is "thirteen trillion, five hundred fifty-three billion, five hundred forty-four million, five hundred thirty-five thousand, six hundred thirty-one".