13885559 has 2 divisors, whose sum is σ = 13885560. Its totient is φ = 13885558.

The previous prime is 13885493. The next prime is 13885589. The reversal of 13885559 is 95558831.

It is a strong prime.

It is an emirp because it is prime and its reverse (95558831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13885559 - 2¹² = 13881463 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13885589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6942779 + 6942780.

It is an arithmetic number, because the mean of its divisors is an integer number (6942780).

Almost surely, 2^13885559 is an apocalyptic number.

13885559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13885559 is an equidigital number, since it uses as much as digits as its factorization.

13885559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 44.

The square root of 13885559 is about 3726.3331842443. Note that the first 3 decimals coincide. The cubic root of 13885559 is about 240.3557167259.

The spelling of 13885559 in words is "thirteen million, eight hundred eighty-five thousand, five hundred fifty-nine".