555230509 has 2 divisors, whose sum is σ = 555230510. Its totient is φ = 555230508.

The previous prime is 555230447. The next prime is 555230537. The reversal of 555230509 is 905032555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553284484 + 1946025 = 23522^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 555230509 - 2¹⁷ = 555099437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555230539) 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, 277615254 + 277615255.

It is an arithmetic number, because the mean of its divisors is an integer number (277615255).

Almost surely, 2^555230509 is an apocalyptic number.

It is an amenable number.

555230509 is a deficient number, since it is larger than the sum of its proper divisors (1).

555230509 is an equidigital number, since it uses as much as digits as its factorization.

555230509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 555230509 is about 23563.3297519684. The cubic root of 555230509 is about 821.9103334171.

The spelling of 555230509 in words is "five hundred fifty-five million, two hundred thirty thousand, five hundred nine".