"Thirtysixtwentyfive" is the debut single from Kieran Hebden's solo project, Four Tet. It was released on 7 July 1998 on Output Recordings. The song marked Hebden's first branching into independent music production, alongside his work with Fridge. The title of the single refers to its length, thirty-six minutes and twenty-five seconds.The CD version of "Thirtysixtwentyfive" contains one continuous, unbroken track.