495559 has 2 divisors, whose sum is σ = 495560. Its totient is φ = 495558.

The previous prime is 495557. The next prime is 495563. The reversal of 495559 is 955594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495559 - 2¹ = 495557 is a prime.

Together with 495557, it forms a pair of twin primes.

It is a nialpdrome in base 14.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495557) 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, 247779 + 247780.

It is an arithmetic number, because the mean of its divisors is an integer number (247780).

2⁴⁹⁵⁵⁵⁹ is an apocalyptic number.

495559 is a deficient number, since it is larger than the sum of its proper divisors (1).

495559 is an equidigital number, since it uses as much as digits as its factorization.

495559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 37.

The square root of 495559 is about 703.9595158814. The cubic root of 495559 is about 79.1343651540.

The spelling of 495559 in words is "four hundred ninety-five thousand, five hundred fifty-nine".