575664209 has 2 divisors, whose sum is σ = 575664210. Its totient is φ = 575664208.

The previous prime is 575664157. The next prime is 575664211. The reversal of 575664209 is 902466575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 559180609 + 16483600 = 23647^2 + 4060^2 .

It is a cyclic number.

It is not a de Polignac number, because 575664209 - 2²⁰ = 574615633 is a prime.

Together with 575664211, 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 575664209.

It is not a weakly prime, because it can be changed into another prime (575664269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287832104 + 287832105.

It is an arithmetic number, because the mean of its divisors is an integer number (287832105).

Almost surely, 2^575664209 is an apocalyptic number.

It is an amenable number.

575664209 is a deficient number, since it is larger than the sum of its proper divisors (1).

575664209 is an equidigital number, since it uses as much as digits as its factorization.

575664209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 575664209 is about 23993.0033343056. The cubic root of 575664209 is about 831.8718141280.

The spelling of 575664209 in words is "five hundred seventy-five million, six hundred sixty-four thousand, two hundred nine".