495288091 has 4 divisors (see below), whose sum is σ = 496850832. Its totient is φ = 493725352.

The previous prime is 495288089. The next prime is 495288133. The reversal of 495288091 is 190882594.

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 495288091 - 2¹ = 495288089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495288791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780895 + ... + 781528.

It is an arithmetic number, because the mean of its divisors is an integer number (124212708).

Almost surely, 2^495288091 is an apocalyptic number.

495288091 is a deficient number, since it is larger than the sum of its proper divisors (1562741).

495288091 is a wasteful number, since it uses less digits than its factorization.

495288091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562740.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 495288091 is about 22255.0688832904. The cubic root of 495288091 is about 791.1994230388.

The spelling of 495288091 in words is "four hundred ninety-five million, two hundred eighty-eight thousand, ninety-one".