495209011 has 4 divisors (see below), whose sum is σ = 540228024. Its totient is φ = 450190000.

The previous prime is 495208991. The next prime is 495209023. The reversal of 495209011 is 110902594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495209011 - 2⁵ = 495208979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495209081) 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 in 3 ways as a sum of consecutive naturals, for example, 22509490 + ... + 22509511.

It is an arithmetic number, because the mean of its divisors is an integer number (135057006).

Almost surely, 2^495209011 is an apocalyptic number.

495209011 is a deficient number, since it is larger than the sum of its proper divisors (45019013).

495209011 is a wasteful number, since it uses less digits than its factorization.

495209011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45019012.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 495209011 is about 22253.2921384680. The cubic root of 495209011 is about 791.1573119376.

The spelling of 495209011 in words is "four hundred ninety-five million, two hundred nine thousand, eleven".