The singer's hugely successful third album is currently poised at 1.97m sales, and looks certain to pass 2.5m sales by the end of 2015.
25 has also, unsurprisingly, recorded a fourth straight week at the top of the UK album chart.
Elvis Presley's posthumous album If I Can Dream is next at 2 in the album chart and Coldplay's A Head Full of Dreams falls to 3.
Justin Bieber is at 4 with Purpose and Jess Glynne's I Cry When I Laugh rounds out the top 5.
While there are no new entries in the Top 40, Ben Haenow's self-titled album moves up four places to re-enter at 40.
Adele is in the habit of breaking records at the moment, having matched her longest Billboard Hot 100 reign when 'Hello' managed a seventh week at number one recently.
Source:
Digital Spy