550606544989 has 2 divisors, whose sum is σ = 550606544990. Its totient is φ = 550606544988.

The previous prime is 550606544987. The next prime is 550606545059. The reversal of 550606544989 is 989445606055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529627340025 + 20979204964 = 727755^2 + 144842^2 .

It is a cyclic number.

It is not a de Polignac number, because 550606544989 - 2¹ = 550606544987 is a prime.

Together with 550606544987, 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 (550606544987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275303272494 + 275303272495.

It is an arithmetic number, because the mean of its divisors is an integer number (275303272495).

Almost surely, 2^550606544989 is an apocalyptic number.

It is an amenable number.

550606544989 is a deficient number, since it is larger than the sum of its proper divisors (1).

550606544989 is an equidigital number, since it uses as much as digits as its factorization.

550606544989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656000, while the sum is 61.

The spelling of 550606544989 in words is "five hundred fifty billion, six hundred six million, five hundred forty-four thousand, nine hundred eighty-nine".