550304231 has 2 divisors, whose sum is σ = 550304232. Its totient is φ = 550304230.

The previous prime is 550304207. The next prime is 550304243. The reversal of 550304231 is 132403055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550304231 - 2²⁶ = 483195367 is a prime.

It is a super-2 number, since 2×550304231² = 605669493313002722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550304197 and 550304206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550304291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275152115 + 275152116.

It is an arithmetic number, because the mean of its divisors is an integer number (275152116).

Almost surely, 2^550304231 is an apocalyptic number.

550304231 is a deficient number, since it is larger than the sum of its proper divisors (1).

550304231 is an equidigital number, since it uses as much as digits as its factorization.

550304231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 550304231 is about 23458.5641291192. The cubic root of 550304231 is about 819.4723111969.

Adding to 550304231 its reverse (132403055), we get a palindrome (682707286).

The spelling of 550304231 in words is "five hundred fifty million, three hundred four thousand, two hundred thirty-one".