558066809 has 2 divisors, whose sum is σ = 558066810. Its totient is φ = 558066808.

The previous prime is 558066763. The next prime is 558066869. The reversal of 558066809 is 908660855.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557904400 + 162409 = 23620^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 558066809 - 2¹⁶ = 558001273 is a prime.

It is a super-2 number, since 2×558066809² = 622877126614884962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (558066869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279033404 + 279033405.

It is an arithmetic number, because the mean of its divisors is an integer number (279033405).

Almost surely, 2^558066809 is an apocalyptic number.

It is an amenable number.

558066809 is a deficient number, since it is larger than the sum of its proper divisors (1).

558066809 is an equidigital number, since it uses as much as digits as its factorization.

558066809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 558066809 is about 23623.4377049573. The cubic root of 558066809 is about 823.3074864810.

The spelling of 558066809 in words is "five hundred fifty-eight million, sixty-six thousand, eight hundred nine".