550000499989 has 2 divisors, whose sum is σ = 550000499990. Its totient is φ = 550000499988.

The previous prime is 550000499987. The next prime is 550000500017. The reversal of 550000499989 is 989994000055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503092304100 + 46908195889 = 709290^2 + 216583^2 .

It is a cyclic number.

It is not a de Polignac number, because 550000499989 - 2¹ = 550000499987 is a prime.

Together with 550000499987, 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 (550000499987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275000249994 + 275000249995.

It is an arithmetic number, because the mean of its divisors is an integer number (275000249995).

Almost surely, 2^550000499989 is an apocalyptic number.

It is an amenable number.

550000499989 is a deficient number, since it is larger than the sum of its proper divisors (1).

550000499989 is an equidigital number, since it uses as much as digits as its factorization.

550000499989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5248800, while the sum is 58.

The spelling of 550000499989 in words is "five hundred fifty billion, four hundred ninety-nine thousand, nine hundred eighty-nine".