550400489 has 2 divisors, whose sum is σ = 550400490. Its totient is φ = 550400488.

The previous prime is 550400479. The next prime is 550400497. The reversal of 550400489 is 984004055.

550400489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391842025 + 158558464 = 19795^2 + 12592^2 .

It is a cyclic number.

It is not a de Polignac number, because 550400489 - 2⁸ = 550400233 is a prime.

It is not a weakly prime, because it can be changed into another prime (550400479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275200244 + 275200245.

It is an arithmetic number, because the mean of its divisors is an integer number (275200245).

Almost surely, 2^550400489 is an apocalyptic number.

It is an amenable number.

550400489 is a deficient number, since it is larger than the sum of its proper divisors (1).

550400489 is an equidigital number, since it uses as much as digits as its factorization.

550400489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 550400489 is about 23460.6156995080. The cubic root of 550400489 is about 819.5200885066.

The spelling of 550400489 in words is "five hundred fifty million, four hundred thousand, four hundred eighty-nine".