563021 has 2 divisors, whose sum is σ = 563022. Its totient is φ = 563020.

The previous prime is 563011. The next prime is 563039. The reversal of 563021 is 120365.

563021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546121 + 16900 = 739^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 563021 - 2¹⁰ = 561997 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281510 + 281511.

It is an arithmetic number, because the mean of its divisors is an integer number (281511).

2⁵⁶³⁰²¹ is an apocalyptic number.

It is an amenable number.

563021 is a deficient number, since it is larger than the sum of its proper divisors (1).

563021 is an equidigital number, since it uses as much as digits as its factorization.

563021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 563021 is about 750.3472529436. The cubic root of 563021 is about 82.5736593445.

Adding to 563021 its reverse (120365), we get a palindrome (683386).

The spelling of 563021 in words is "five hundred sixty-three thousand, twenty-one".