43563 has 8 divisors (see below), whose sum is σ = 62608. Its totient is φ = 26784.

The previous prime is 43543. The next prime is 43573. The reversal of 43563 is 36534.

43563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43563 - 2⁶ = 43499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520 + ... + 597.

It is an arithmetic number, because the mean of its divisors is an integer number (7826).

2⁴³⁵⁶³ is an apocalyptic number.

43563 is a deficient number, since it is larger than the sum of its proper divisors (19045).

43563 is a wasteful number, since it uses less digits than its factorization.

43563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its digits is 1080, while the sum is 21.

The square root of 43563 is about 208.7175124421. The cubic root of 43563 is about 35.1862183480.

It can be divided in two parts, 43 and 563, that added together give a palindrome (606).

The spelling of 43563 in words is "forty-three thousand, five hundred sixty-three".