495512009 has 8 divisors (see below), whose sum is σ = 513621000. Its totient is φ = 477471232.

The previous prime is 495511993. The next prime is 495512011. The reversal of 495512009 is 900215594.

It can be written as a sum of positive squares in 4 ways, for example, as 45859984 + 449652025 = 6772^2 + 21205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 495512009 - 2⁴ = 495511993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 495512009.

It is not an unprimeable number, because it can be changed into a prime (495512509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 31545.

It is an arithmetic number, because the mean of its divisors is an integer number (64202625).

Almost surely, 2^495512009 is an apocalyptic number.

It is an amenable number.

495512009 is a deficient number, since it is larger than the sum of its proper divisors (18108991).

495512009 is a wasteful number, since it uses less digits than its factorization.

495512009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34107.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 495512009 is about 22260.0990339217. The cubic root of 495512009 is about 791.3186378984.

The spelling of 495512009 in words is "four hundred ninety-five million, five hundred twelve thousand, nine".