552809 has 2 divisors, whose sum is σ = 552810. Its totient is φ = 552808.

The previous prime is 552793. The next prime is 552821. The reversal of 552809 is 908255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327184 + 225625 = 572^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 552809 - 2⁴ = 552793 is a prime.

It is a super-3 number, since 3×552809³ = 506811626874033387, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 552809.

It is not a weakly prime, because it can be changed into another prime (552859) 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 as a sum of consecutive naturals, namely, 276404 + 276405.

It is an arithmetic number, because the mean of its divisors is an integer number (276405).

2⁵⁵²⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

552809 is a deficient number, since it is larger than the sum of its proper divisors (1).

552809 is an equidigital number, since it uses as much as digits as its factorization.

552809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 552809 is about 743.5112642052. The cubic root of 552809 is about 82.0713735112.

The spelling of 552809 in words is "five hundred fifty-two thousand, eight hundred nine".