550118311 has 2 divisors, whose sum is σ = 550118312. Its totient is φ = 550118310.

The previous prime is 550118263. The next prime is 550118353. The reversal of 550118311 is 113811055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550118311 - 2²³ = 541729703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550118411) 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, 275059155 + 275059156.

It is an arithmetic number, because the mean of its divisors is an integer number (275059156).

Almost surely, 2^550118311 is an apocalyptic number.

550118311 is a deficient number, since it is larger than the sum of its proper divisors (1).

550118311 is an equidigital number, since it uses as much as digits as its factorization.

550118311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 550118311 is about 23454.6010624781. The cubic root of 550118311 is about 819.3800147031.

Adding to 550118311 its reverse (113811055), we get a palindrome (663929366).

The spelling of 550118311 in words is "five hundred fifty million, one hundred eighteen thousand, three hundred eleven".