20333 has 2 divisors, whose sum is σ = 20334. Its totient is φ = 20332.

The previous prime is 20327. The next prime is 20341. The reversal of 20333 is 33302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20164 + 169 = 142^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333 - 2⁶ = 20269 is a prime.

20333 is a modest number, since divided by 333 gives 20 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166 + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (10167).

2²⁰³³³ is an apocalyptic number.

It is an amenable number.

20333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333 is an equidigital number, since it uses as much as digits as its factorization.

20333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 11.

The square root of 20333 is about 142.5938287585. The cubic root of 20333 is about 27.2939978844.

Adding to 20333 its reverse (33302), we get a palindrome (53635).

It can be divided in two parts, 20 and 333, that added together give a palindrome (353).

The spelling of 20333 in words is "twenty thousand, three hundred thirty-three".