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The mass, decay constant and width of a hypothetical charmed partner $X_c$ ofthe newly observed exotic $X_b(5568)$ state are calculated using a technique ofQCD sum rule method. The $X_c=[su][\overline{c}\overline{d}]$ state with$J^{P}=0^{+}$ is described employing two types of the diquark-antidiquarkinterpolating currents. The evaluation of the mass $m_{X_c}$ and decay constant$f_{X_c}$ is carried out utilizing the two-point sum rule method by includingvacuum condensates up to eight dimensions. The widths of the decay channels$X_c \to D_s^{-} \pi^{+}$ and $X_c \to D^{0} K^{0}$ are also found. To thisend, the strong couplings $g_{X_{c}D_{s}\pi}$ and $g_{X_{c}D K}$ are computedby means of QCD sum rules on the light-cone and soft-meson approximation.

Charmed partner of the exotic $X(5568)$ state and its properties