558840509 has 2 divisors, whose sum is σ = 558840510. Its totient is φ = 558840508.

The previous prime is 558840479. The next prime is 558840511. The reversal of 558840509 is 905048855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529138009 + 29702500 = 23003^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 558840509 - 2⁸ = 558840253 is a prime.

Together with 558840511, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 558840509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (558840409) 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 as a sum of consecutive naturals, namely, 279420254 + 279420255.

It is an arithmetic number, because the mean of its divisors is an integer number (279420255).

Almost surely, 2^558840509 is an apocalyptic number.

It is an amenable number.

558840509 is a deficient number, since it is larger than the sum of its proper divisors (1).

558840509 is an equidigital number, since it uses as much as digits as its factorization.

558840509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 558840509 is about 23639.8077191842. The cubic root of 558840509 is about 823.6877867391.

The spelling of 558840509 in words is "five hundred fifty-eight million, eight hundred forty thousand, five hundred nine".