495659491 has 2 divisors, whose sum is σ = 495659492. Its totient is φ = 495659490.

The previous prime is 495659477. The next prime is 495659513. The reversal of 495659491 is 194956594.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495659491 - 2⁵ = 495659459 is a prime.

It is not a weakly prime, because it can be changed into another prime (495659401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247829745 + 247829746.

It is an arithmetic number, because the mean of its divisors is an integer number (247829746).

Almost surely, 2^495659491 is an apocalyptic number.

495659491 is a deficient number, since it is larger than the sum of its proper divisors (1).

495659491 is an equidigital number, since it uses as much as digits as its factorization.

495659491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 52.

The square root of 495659491 is about 22263.4114861133. The cubic root of 495659491 is about 791.3971383024.

The spelling of 495659491 in words is "four hundred ninety-five million, six hundred fifty-nine thousand, four hundred ninety-one".