43559 has 4 divisors (see below), whose sum is σ = 44616. Its totient is φ = 42504.

The previous prime is 43543. The next prime is 43573. The reversal of 43559 is 95534.

43559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43559 - 2⁴ = 43543 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 (43579) 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, 464 + ... + 549.

It is an arithmetic number, because the mean of its divisors is an integer number (11154).

2⁴³⁵⁵⁹ is an apocalyptic number.

43559 is a deficient number, since it is larger than the sum of its proper divisors (1057).

43559 is a wasteful number, since it uses less digits than its factorization.

43559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 2700, while the sum is 26.

The square root of 43559 is about 208.7079298925. The cubic root of 43559 is about 35.1851413699.

It can be divided in two parts, 435 and 59, that added together give a palindrome (494).

The spelling of 43559 in words is "forty-three thousand, five hundred fifty-nine".