550005055489 has 2 divisors, whose sum is σ = 550005055490. Its totient is φ = 550005055488.

The previous prime is 550005055487. The next prime is 550005055507. The reversal of 550005055489 is 984550500055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359001093889 + 191003961600 = 599167^2 + 437040^2 .

It is a cyclic number.

It is not a de Polignac number, because 550005055489 - 2¹ = 550005055487 is a prime.

It is a super-2 number, since 2×550005055489² (a number of 24 digits) contains 22 as substring.

Together with 550005055487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (550005055487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275002527744 + 275002527745.

It is an arithmetic number, because the mean of its divisors is an integer number (275002527745).

Almost surely, 2^550005055489 is an apocalyptic number.

It is an amenable number.

550005055489 is a deficient number, since it is larger than the sum of its proper divisors (1).

550005055489 is an equidigital number, since it uses as much as digits as its factorization.

550005055489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900000, while the sum is 46.

The spelling of 550005055489 in words is "five hundred fifty billion, five million, fifty-five thousand, four hundred eighty-nine".