13559963 has 2 divisors, whose sum is σ = 13559964. Its totient is φ = 13559962.

The previous prime is 13559893. The next prime is 13559983. The reversal of 13559963 is 36995531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13559963 - 2¹⁰ = 13558939 is a prime.

It is a super-2 number, since 2×13559963² = 367745193122738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13559963.

It is not a weakly prime, because it can be changed into another prime (13559983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6779981 + 6779982.

It is an arithmetic number, because the mean of its divisors is an integer number (6779982).

Almost surely, 2^13559963 is an apocalyptic number.

13559963 is a deficient number, since it is larger than the sum of its proper divisors (1).

13559963 is an equidigital number, since it uses as much as digits as its factorization.

13559963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 41.

The square root of 13559963 is about 3682.3855039906. The cubic root of 13559963 is about 238.4621753792.

The spelling of 13559963 in words is "thirteen million, five hundred fifty-nine thousand, nine hundred sixty-three".