550551061831 has 2 divisors, whose sum is σ = 550551061832. Its totient is φ = 550551061830.

The previous prime is 550551061829. The next prime is 550551061849. The reversal of 550551061831 is 138160155055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550551061831 - 2¹ = 550551061829 is a prime.

It is a super-2 number, since 2×550551061831² (a number of 24 digits) contains 22 as substring.

Together with 550551061829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550551061861) 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, 275275530915 + 275275530916.

It is an arithmetic number, because the mean of its divisors is an integer number (275275530916).

Almost surely, 2^550551061831 is an apocalyptic number.

550551061831 is a deficient number, since it is larger than the sum of its proper divisors (1).

550551061831 is an equidigital number, since it uses as much as digits as its factorization.

550551061831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 550551061831 in words is "five hundred fifty billion, five hundred fifty-one million, sixty-one thousand, eight hundred thirty-one".