The properties of the toroidal plasma produced by the stabilized double-theta pinch are investigated experimentally and theoretically. The toroidal plasma produced has a strongly elongated crosssection with the half-axis ratio b/a ∼ 14 and an aspect ratio R0/a ∼ 8 at t = 3 μs, when the values of β and βp are approximately 0.23 and 0.30, respectively. It is shown that in the vicinity of the median plane of the plasma the Suydam criterion S ≥ 0 for the high m-mode is satisfied throughout the cross-section of the plasma produced. With the one-dimensional approximation, an analytic solution of MHD equilibrium is presented which always satisfies the Suydam criterion.