495909913 has 2 divisors, whose sum is σ = 495909914. Its totient is φ = 495909912.

The previous prime is 495909901. The next prime is 495909971. The reversal of 495909913 is 319909594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451647504 + 44262409 = 21252^2 + 6653^2 .

It is a cyclic number.

It is not a de Polignac number, because 495909913 - 2¹⁷ = 495778841 is a prime.

It is not a weakly prime, because it can be changed into another prime (495909983) 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, 247954956 + 247954957.

It is an arithmetic number, because the mean of its divisors is an integer number (247954957).

Almost surely, 2^495909913 is an apocalyptic number.

It is an amenable number.

495909913 is a deficient number, since it is larger than the sum of its proper divisors (1).

495909913 is an equidigital number, since it uses as much as digits as its factorization.

495909913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 495909913 is about 22269.0348466205. The cubic root of 495909913 is about 791.5303950315.

The spelling of 495909913 in words is "four hundred ninety-five million, nine hundred nine thousand, nine hundred thirteen".