Median weekly earnings of full time workers is over $1100/week now, so the median full time worker is probably making well over $50k/year, if they can hold down a job for the full year and work full time hours.
Lots of people don’t work because they don’t want to work, and don’t need to work: retirees, students, married to rich spouses, etc. Including them in the denominator can be helpful for measuring some things, but would be misleading to assume that the median individual income across all individuals would mean what most commenters in this thread seem to think it means.