495495491 has 4 divisors (see below), whose sum is σ = 495580800. Its totient is φ = 495410184.

The previous prime is 495495461. The next prime is 495495499. The reversal of 495495491 is 194594594.

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 495495491 - 2²⁶ = 428386627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495495499) 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, 33251 + ... + 45788.

It is an arithmetic number, because the mean of its divisors is an integer number (123895200).

Almost surely, 2^495495491 is an apocalyptic number.

495495491 is a deficient number, since it is larger than the sum of its proper divisors (85309).

495495491 is an equidigital number, since it uses as much as digits as its factorization.

495495491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85308.

The product of its digits is 1166400, while the sum is 50.

The square root of 495495491 is about 22259.7280082215. The cubic root of 495495491 is about 791.3098448747.

The spelling of 495495491 in words is "four hundred ninety-five million, four hundred ninety-five thousand, four hundred ninety-one".