555309229 has 2 divisors, whose sum is σ = 555309230. Its totient is φ = 555309228.

The previous prime is 555309203. The next prime is 555309269. The reversal of 555309229 is 922903555.

It is an a-pointer prime, because the next prime (555309269) can be obtained adding 555309229 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555309225 + 4 = 23565^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 555309229 - 2⁹ = 555308717 is a prime.

It is equal to p_29109388 and since 555309229 and 29109388 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 555309191 and 555309200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555309269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277654614 + 277654615.

It is an arithmetic number, because the mean of its divisors is an integer number (277654615).

Almost surely, 2^555309229 is an apocalyptic number.

It is an amenable number.

555309229 is a deficient number, since it is larger than the sum of its proper divisors (1).

555309229 is an equidigital number, since it uses as much as digits as its factorization.

555309229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 555309229 is about 23565.0000848716. Note that the first 4 decimals coincide. The cubic root of 555309229 is about 821.9491747769.

The spelling of 555309229 in words is "five hundred fifty-five million, three hundred nine thousand, two hundred twenty-nine".