16533 has 12 divisors (see below), whose sum is σ = 26208. Its totient is φ = 9960.

The previous prime is 16529. The next prime is 16547. The reversal of 16533 is 33561.

It is not a de Polignac number, because 16533 - 2² = 16529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16 + ... + 182.

It is an arithmetic number, because the mean of its divisors is an integer number (2184).

2¹⁶⁵³³ is an apocalyptic number.

It is an amenable number.

16533 is a deficient number, since it is larger than the sum of its proper divisors (9675).

16533 is a wasteful number, since it uses less digits than its factorization.

16533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 181 counting only the distinct ones).

The product of its digits is 270, while the sum is 18.

The square root of 16533 is about 128.5807139504. The cubic root of 16533 is about 25.4751776907.

It can be divided in two parts, 165 and 33, that multiplied together give a palindrome (5445).

The spelling of 16533 in words is "sixteen thousand, five hundred thirty-three".