516223 has 2 divisors, whose sum is σ = 516224. Its totient is φ = 516222.

The previous prime is 516209. The next prime is 516227. The reversal of 516223 is 322615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516223 is a prime.

It is a nialpdrome in base 9.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 516223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258111 + 258112.

It is an arithmetic number, because the mean of its divisors is an integer number (258112).

2⁵¹⁶²²³ is an apocalyptic number.

516223 is a deficient number, since it is larger than the sum of its proper divisors (1).

516223 is an equidigital number, since it uses as much as digits as its factorization.

516223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 19.

The square root of 516223 is about 718.4866039113. The cubic root of 516223 is about 80.2193459589.

Adding to 516223 its reverse (322615), we get a palindrome (838838).

The spelling of 516223 in words is "five hundred sixteen thousand, two hundred twenty-three".