422563 has 2 divisors, whose sum is σ = 422564. Its totient is φ = 422562.

The previous prime is 422557. The next prime is 422567. The reversal of 422563 is 365224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422563 - 2¹⁷ = 291491 is a prime.

422563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (422567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211281 + 211282.

It is an arithmetic number, because the mean of its divisors is an integer number (211282).

2⁴²²⁵⁶³ is an apocalyptic number.

422563 is a deficient number, since it is larger than the sum of its proper divisors (1).

422563 is an equidigital number, since it uses as much as digits as its factorization.

422563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 22.

The square root of 422563 is about 650.0484597320. The cubic root of 422563 is about 75.0407482275.

Adding to 422563 its reverse (365224), we get a palindrome (787787).

The spelling of 422563 in words is "four hundred twenty-two thousand, five hundred sixty-three".