495599561 has 8 divisors (see below), whose sum is σ = 517424064. Its totient is φ = 473798160.

The previous prime is 495599551. The next prime is 495599579. The reversal of 495599561 is 165995594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-495599561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (495599551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49391 + ... + 58571.

It is an arithmetic number, because the mean of its divisors is an integer number (64678008).

Almost surely, 2^495599561 is an apocalyptic number.

It is an amenable number.

495599561 is a deficient number, since it is larger than the sum of its proper divisors (21824503).

495599561 is a wasteful number, since it uses less digits than its factorization.

495599561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551.

The product of its digits is 2187000, while the sum is 53.

The square root of 495599561 is about 22262.0655151313. The cubic root of 495599561 is about 791.3652411748.

The spelling of 495599561 in words is "four hundred ninety-five million, five hundred ninety-nine thousand, five hundred sixty-one".