504390085 has 8 divisors (see below), whose sum is σ = 640872216. Its totient is φ = 379776000.

The previous prime is 504390083. The next prime is 504390121. The reversal of 504390085 is 580093405.

It can be written as a sum of positive squares in 4 ways, for example, as 75030244 + 429359841 = 8662^2 + 20721^2 .

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

It is not a de Polignac number, because 504390085 - 2¹ = 504390083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504390085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504390083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2966916 + ... + 2967085.

It is an arithmetic number, because the mean of its divisors is an integer number (80109027).

Almost surely, 2^504390085 is an apocalyptic number.

It is an amenable number.

504390085 is a deficient number, since it is larger than the sum of its proper divisors (136482131).

504390085 is a wasteful number, since it uses less digits than its factorization.

504390085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934023.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 504390085 is about 22458.6305236985. The cubic root of 504390085 is about 796.0167021949.

The spelling of 504390085 in words is "five hundred four million, three hundred ninety thousand, eighty-five".