33530 has 16 divisors (see below), whose sum is σ = 69120. Its totient is φ = 11472.

The previous prime is 33529. The next prime is 33533. The reversal of 33530 is 3533.

33530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

33530 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×33530² = 2248521800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (33533) 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, 170 + ... + 309.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2³³⁵³⁰ is an apocalyptic number.

33530 is an abundant number, since it is smaller than the sum of its proper divisors (35590).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34560).

33530 is a wasteful number, since it uses less digits than its factorization.

33530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 135, while the sum is 14.

The square root of 33530 is about 183.1119875923. Note that the first 3 decimals coincide. The cubic root of 33530 is about 32.2461486096.

The spelling of 33530 in words is "thirty-three thousand, five hundred thirty".