13508889803 has 4 divisors (see below), whose sum is σ = 13509122928. Its totient is φ = 13508656680.

The previous prime is 13508889799. The next prime is 13508889827. The reversal of 13508889803 is 30898880531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13508889803 - 2² = 13508889799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13508889833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45050 + ... + 170432.

It is an arithmetic number, because the mean of its divisors is an integer number (3377280732).

Almost surely, 2^13508889803 is an apocalyptic number.

13508889803 is a deficient number, since it is larger than the sum of its proper divisors (233125).

13508889803 is a wasteful number, since it uses less digits than its factorization.

13508889803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233124.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 13508889803 in words is "thirteen billion, five hundred eight million, eight hundred eighty-nine thousand, eight hundred three".