The concentrations of cylindrical micelles and monomers above the second critical micellization concentration (CMC) were discussed. It was shown that the ratios of the total concentration were equal by the order of magnitude to 1 and 10² respectively. It was also shown that the second CMC exceeds the first CMC by two orders of magnitude, corresponding to the onset of the noticeable accumulation of surfactant in spherical micelles. It was analyzed that the total concentration of mean value, cylindrical micelles, and mean statistical scatter of aggregation numbers in a cylindrical micelle was proportional to the square root of the overall surfactant concentration.