<p>We consider an electron confined in a quantum ring (QR) defined electrostatically within the phosphorene monolayer. A confinement potential with an elliptical shape is employed to account for the anisotropy of the effective masses. The Schrödinger equation is solved, leading to the determination of the energy levels. Subsequently, the Shannon formalism is applied to compute the probability distribution and partition function of the system. Finally, the magnetic and thermodynamic properties of the phosphorene QR are analyzed. The results reveal that the magnetic susceptibility exhibits a negative value, indicative of diamagnetic behavior. A maximum value of magnetic susceptibility is observed at low temperatures and high magnetic fields. At elevated magnetic temperatures, the specific heat remains constant, even in the absence of an external magnetic field.</p>