9559 has 6 divisors (see below), whose sum is σ = 10640.
Its totient is φ = 8580.
The previous prime is 9551. The next prime is 9587.
9559 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 9559 - 23 = 9551 is a prime.
It is a Duffinian number.
It is a plaindrome in base 14 and base 16.
It is a nialpdrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9551) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82 + ... + 160.
29559 is an apocalyptic number.
9559 is a deficient number, since it is larger than the sum of its proper divisors (1081).
9559 is a wasteful number, since it uses less digits than its factorization.
9559 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101 (or 90 counting only the distinct ones).
The product of its digits is 2025, while the sum is 28.
The square root of 9559 is about 97.7701385905.
The cubic root of 9559 is about 21.2228719571.
Note that the first 3 decimals are identical.
The spelling of 9559 in words is "nine thousand, five hundred fifty-nine".