504066565 has 4 divisors (see below), whose sum is σ = 604879884. Its totient is φ = 403253248.

The previous prime is 504066557. The next prime is 504066569. The reversal of 504066565 is 565660405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243921924 + 260144641 = 15618^2 + 16129^2 .

It is a cyclic number.

It is not a de Polignac number, because 504066565 - 2³ = 504066557 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 (504066569) 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, 50406652 + ... + 50406661.

It is an arithmetic number, because the mean of its divisors is an integer number (151219971).

Almost surely, 2^504066565 is an apocalyptic number.

It is an amenable number.

504066565 is a deficient number, since it is larger than the sum of its proper divisors (100813319).

504066565 is a wasteful number, since it uses less digits than its factorization.

504066565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100813318.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 504066565 is about 22451.4267920772. The cubic root of 504066565 is about 795.8464752146.

The spelling of 504066565 in words is "five hundred four million, sixty-six thousand, five hundred sixty-five".