Some remarks on X(6900)

The analysis of the LHCb data on X(6900) found in the di-J/psi system was performed using a momentum-dependent Flatte-like parameterization. The use of the pole counting rule and spectral density function sum rule provides consistent evidence that both confining and molecular states are possible. Alternatively, the nature of X(6900) cannot be distinguished if only the di-J/psi experimental data with current statistics are available. Nevertheless, we found that the lowest state in the di-J/psi system likely has the same quantum numbers as X(6900) , and X(6900) is probably not interpreted as a J/psi - psi(2S) molecular state.