550331555443 has 2 divisors, whose sum is σ = 550331555444. Its totient is φ = 550331555442.

The previous prime is 550331555287. The next prime is 550331555467. The reversal of 550331555443 is 344555133055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550331555443 - 2¹³ = 550331547251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550331555443.

It is not a weakly prime, because it can be changed into another prime (550331555483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275165777721 + 275165777722.

It is an arithmetic number, because the mean of its divisors is an integer number (275165777722).

Almost surely, 2^550331555443 is an apocalyptic number.

550331555443 is a deficient number, since it is larger than the sum of its proper divisors (1).

550331555443 is an equidigital number, since it uses as much as digits as its factorization.

550331555443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350000, while the sum is 43.

Adding to 550331555443 its reverse (344555133055), we get a palindrome (894886688498).

The spelling of 550331555443 in words is "five hundred fifty billion, three hundred thirty-one million, five hundred fifty-five thousand, four hundred forty-three".