13555042559 has 4 divisors (see below), whose sum is σ = 13555728720. Its totient is φ = 13554356400.

The previous prime is 13555042549. The next prime is 13555042573. The reversal of 13555042559 is 95524055531.

It is a happy number.

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 13555042559 - 2²⁴ = 13538265343 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 (13555042549) 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, 312542 + ... + 353259.

It is an arithmetic number, because the mean of its divisors is an integer number (3388932180).

Almost surely, 2^13555042559 is an apocalyptic number.

13555042559 is a deficient number, since it is larger than the sum of its proper divisors (686161).

13555042559 is an equidigital number, since it uses as much as digits as its factorization.

13555042559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686160.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 13555042559 in words is "thirteen billion, five hundred fifty-five million, forty-two thousand, five hundred fifty-nine".