550830509 has 2 divisors, whose sum is σ = 550830510. Its totient is φ = 550830508.

The previous prime is 550830491. The next prime is 550830529. The reversal of 550830509 is 905038055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500774884 + 50055625 = 22378^2 + 7075^2 .

It is a cyclic number.

It is not a de Polignac number, because 550830509 - 2¹² = 550826413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550830529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275415254 + 275415255.

It is an arithmetic number, because the mean of its divisors is an integer number (275415255).

Almost surely, 2^550830509 is an apocalyptic number.

It is an amenable number.

550830509 is a deficient number, since it is larger than the sum of its proper divisors (1).

550830509 is an equidigital number, since it uses as much as digits as its factorization.

550830509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 550830509 is about 23469.7786312526. The cubic root of 550830509 is about 819.7334593748.

The spelling of 550830509 in words is "five hundred fifty million, eight hundred thirty thousand, five hundred nine".