223533 has 16 divisors (see below), whose sum is σ = 351360. Its totient is φ = 139968.

The previous prime is 223529. The next prime is 223543. The reversal of 223533 is 335322.

It is not a de Polignac number, because 223533 - 2² = 223529 is a prime.

It is a Curzon number.

223533 is a lucky number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216 + ... + 702.

It is an arithmetic number, because the mean of its divisors is an integer number (21960).

2²²³⁵³³ is an apocalyptic number.

It is an amenable number.

223533 is a deficient number, since it is larger than the sum of its proper divisors (127827).

223533 is a wasteful number, since it uses less digits than its factorization.

223533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its digits is 540, while the sum is 18.

The square root of 223533 is about 472.7927664421. The cubic root of 223533 is about 60.6895451018.

Adding to 223533 its reverse (335322), we get a palindrome (558855).

The spelling of 223533 in words is "two hundred twenty-three thousand, five hundred thirty-three".