13023544553 has 8 divisors (see below), whose sum is σ = 13174942248. Its totient is φ = 12872963584.

The previous prime is 13023544549. The next prime is 13023544559. The reversal of 13023544553 is 35544532031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97673689 + 12925870864 = 9883^2 + 113692^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13023544553 - 2² = 13023544549 is a prime.

It is a super-2 number, since 2×13023544553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13023544559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172076 + ... + 235917.

It is an arithmetic number, because the mean of its divisors is an integer number (1646867781).

Almost surely, 2^13023544553 is an apocalyptic number.

It is an amenable number.

13023544553 is a deficient number, since it is larger than the sum of its proper divisors (151397695).

13023544553 is a wasteful number, since it uses less digits than its factorization.

13023544553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408363.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 13023544553 in words is "thirteen billion, twenty-three million, five hundred forty-four thousand, five hundred fifty-three".