506459 has 2 divisors, whose sum is σ = 506460. Its totient is φ = 506458.

The previous prime is 506449. The next prime is 506461. The reversal of 506459 is 954605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506459 is a prime.

It is a Sophie Germain prime.

Together with 506461, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 506459.

It is not a weakly prime, because it can be changed into another prime (506449) 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, 253229 + 253230.

It is an arithmetic number, because the mean of its divisors is an integer number (253230).

2⁵⁰⁶⁴⁵⁹ is an apocalyptic number.

506459 is a deficient number, since it is larger than the sum of its proper divisors (1).

506459 is an equidigital number, since it uses as much as digits as its factorization.

506459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 506459 is about 711.6593286117. The cubic root of 506459 is about 79.7103588657.

The spelling of 506459 in words is "five hundred six thousand, four hundred fifty-nine".