20063 has 2 divisors, whose sum is σ = 20064. Its totient is φ = 20062.

The previous prime is 20051. The next prime is 20071. The reversal of 20063 is 36002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20063 - 2⁴ = 20047 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031 + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (10032).

2²⁰⁰⁶³ is an apocalyptic number.

20063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20063 is an equidigital number, since it uses as much as digits as its factorization.

20063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20063 is about 141.6439197424. The cubic root of 20063 is about 27.1726476767.

Adding to 20063 its reverse (36002), we get a palindrome (56065).

The spelling of 20063 in words is "twenty thousand, sixty-three".