13553143543 has 4 divisors (see below), whose sum is σ = 13594089928. Its totient is φ = 13512197160.

The previous prime is 13553143537. The next prime is 13553143547. The reversal of 13553143543 is 34534135531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13553143543 - 2²¹ = 13551046391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553143547) 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, 20472696 + ... + 20473357.

It is an arithmetic number, because the mean of its divisors is an integer number (3398522482).

Almost surely, 2^13553143543 is an apocalyptic number.

13553143543 is a deficient number, since it is larger than the sum of its proper divisors (40946385).

13553143543 is an equidigital number, since it uses as much as digits as its factorization.

13553143543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40946384.

The product of its digits is 162000, while the sum is 37.

The spelling of 13553143543 in words is "thirteen billion, five hundred fifty-three million, one hundred forty-three thousand, five hundred forty-three".