495808277 has 2 divisors, whose sum is σ = 495808278. Its totient is φ = 495808276.

The previous prime is 495808259. The next prime is 495808279. The reversal of 495808277 is 772808594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305340676 + 190467601 = 17474^2 + 13801^2 .

It is a cyclic number.

It is not a de Polignac number, because 495808277 - 2¹⁰ = 495807253 is a prime.

Together with 495808279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495808279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247904138 + 247904139.

It is an arithmetic number, because the mean of its divisors is an integer number (247904139).

Almost surely, 2^495808277 is an apocalyptic number.

It is an amenable number.

495808277 is a deficient number, since it is larger than the sum of its proper divisors (1).

495808277 is an equidigital number, since it uses as much as digits as its factorization.

495808277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The square root of 495808277 is about 22266.7527268796. The cubic root of 495808277 is about 791.4763170107.

The spelling of 495808277 in words is "four hundred ninety-five million, eight hundred eight thousand, two hundred seventy-seven".