580665509 has 4 divisors (see below), whose sum is σ = 591621516. Its totient is φ = 569709504.

The previous prime is 580665497. The next prime is 580665511. The reversal of 580665509 is 905566085.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 905566085 = 5 ⋅181113217.

It can be written as a sum of positive squares in 2 ways, for example, as 418816225 + 161849284 = 20465^2 + 12722^2 .

It is a cyclic number.

It is not a de Polignac number, because 580665509 - 2²⁸ = 312230053 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 580665509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (580665539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5477924 + ... + 5478029.

It is an arithmetic number, because the mean of its divisors is an integer number (147905379).

Almost surely, 2^580665509 is an apocalyptic number.

It is an amenable number.

580665509 is a deficient number, since it is larger than the sum of its proper divisors (10956007).

580665509 is a wasteful number, since it uses less digits than its factorization.

580665509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10956006.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 580665509 is about 24097.0020749470. The cubic root of 580665509 is about 834.2739377920.

The spelling of 580665509 in words is "five hundred eighty million, six hundred sixty-five thousand, five hundred nine".