NEW YORK — The producers of “700 Sundays” have announced a May 22 closing after 21 previews and 149 regular performances. Despite the show’s title, Billy Crystal will have played only two Sunday performances: opening day, Dec. 5, and closing day.

The Des McAnuff-helmed show was originally announced as a 16-week limited engagement, which took it to March 5. It was extended to May 21.

Thanks to premium tickets priced up to $251.25, “700 Sundays” has grossed like one of Broadway’s most popular musicals, earning well into the $700,000s week after week. It often tops “Hairspray,” which plays at a larger theater and a full eight-perf sked. Crystal did seven at the beginning of his run and now does only six a week.

At his opening-night press conference, Crystal referred to “700 Sundays” as a play. The Tony Awards administration committee has made it eligible instead for special theatrical event. Play or event, the show topped the B.O. for the recent play revivals of “A Long Day’s Journey Into Night” and “A Raisin in the Sun,” each of which grossed into the $600,000s in their limited engagements.

With a cumulative gross of over $21 million, “700 Sundays” broke the B.O. house record at the Broadhurst Theater and set a record for the highest weekly gross for a nonmusical in Broadway history.

The May 22 shutter date marks an added perf. Tickets go on sale Wednesday.