495356009 has 2 divisors, whose sum is σ = 495356010. Its totient is φ = 495356008.

The previous prime is 495355981. The next prime is 495356021. The reversal of 495356009 is 900653594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495196009 + 160000 = 22253^2 + 400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495356009 is a prime.

It is not a weakly prime, because it can be changed into another prime (495356039) 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, 247678004 + 247678005.

It is an arithmetic number, because the mean of its divisors is an integer number (247678005).

Almost surely, 2^495356009 is an apocalyptic number.

It is an amenable number.

495356009 is a deficient number, since it is larger than the sum of its proper divisors (1).

495356009 is an equidigital number, since it uses as much as digits as its factorization.

495356009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 495356009 is about 22256.5947305512. The cubic root of 495356009 is about 791.2355866556.

The spelling of 495356009 in words is "four hundred ninety-five million, three hundred fifty-six thousand, nine".