550190009 has 2 divisors, whose sum is σ = 550190010. Its totient is φ = 550190008.

The previous prime is 550189999. The next prime is 550190021. The reversal of 550190009 is 900091055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545082409 + 5107600 = 23347^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 550190009 - 2⁸ = 550189753 is a prime.

It is not a weakly prime, because it can be changed into another prime (550190089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275095004 + 275095005.

It is an arithmetic number, because the mean of its divisors is an integer number (275095005).

Almost surely, 2^550190009 is an apocalyptic number.

It is an amenable number.

550190009 is a deficient number, since it is larger than the sum of its proper divisors (1).

550190009 is an equidigital number, since it uses as much as digits as its factorization.

550190009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 550190009 is about 23456.1294547928. The cubic root of 550190009 is about 819.4156102923.

The spelling of 550190009 in words is "five hundred fifty million, one hundred ninety thousand, nine".