495776521 has 4 divisors (see below), whose sum is σ = 511769344. Its totient is φ = 479783700.

The previous prime is 495776509. The next prime is 495776531. The reversal of 495776521 is 125677594.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 495776521 - 2⁹ = 495776009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495776531) 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, 7996365 + ... + 7996426.

It is an arithmetic number, because the mean of its divisors is an integer number (127942336).

Almost surely, 2^495776521 is an apocalyptic number.

It is an amenable number.

495776521 is a deficient number, since it is larger than the sum of its proper divisors (15992823).

495776521 is a wasteful number, since it uses less digits than its factorization.

495776521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15992822.

The product of its digits is 529200, while the sum is 46.

The square root of 495776521 is about 22266.0396343849. The cubic root of 495776521 is about 791.4594189073.

The spelling of 495776521 in words is "four hundred ninety-five million, seven hundred seventy-six thousand, five hundred twenty-one".