13554523443 has 4 divisors (see below), whose sum is σ = 18072697928. Its totient is φ = 9036348960.

The previous prime is 13554523441. The next prime is 13554523459. The reversal of 13554523443 is 34432545531.

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

It is not a de Polignac number, because 13554523443 - 2¹ = 13554523441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13554523441) 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, 2259087238 + ... + 2259087243.

It is an arithmetic number, because the mean of its divisors is an integer number (4518174482).

Almost surely, 2^13554523443 is an apocalyptic number.

13554523443 is a deficient number, since it is larger than the sum of its proper divisors (4518174485).

13554523443 is an equidigital number, since it uses as much as digits as its factorization.

13554523443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518174484.

The product of its digits is 432000, while the sum is 39.

The spelling of 13554523443 in words is "thirteen billion, five hundred fifty-four million, five hundred twenty-three thousand, four hundred forty-three".