495257767 has 4 divisors (see below), whose sum is σ = 511233856. Its totient is φ = 479281680.

The previous prime is 495257759. The next prime is 495257773. The reversal of 495257767 is 767752594.

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 495257767 - 2³ = 495257759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495257717) 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, 7987998 + ... + 7988059.

It is an arithmetic number, because the mean of its divisors is an integer number (127808464).

Almost surely, 2^495257767 is an apocalyptic number.

495257767 is a deficient number, since it is larger than the sum of its proper divisors (15976089).

495257767 is a wasteful number, since it uses less digits than its factorization.

495257767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976088.

The product of its digits is 3704400, while the sum is 52.

The square root of 495257767 is about 22254.3875898664. The cubic root of 495257767 is about 791.1832756548.

The spelling of 495257767 in words is "four hundred ninety-five million, two hundred fifty-seven thousand, seven hundred sixty-seven".