25 (number)

25 was a number.

The Fifth Doctor defined a generation as twenty-five years. (TV: Four to Doomsday)

Ace once had a bracelet with the number 25 on it, which she pondered about with the Seventh Doctor. It had also been 25 years, relative to Ace, since the Doctor first came to Earth, and the Doctor felt that after 25 years, it was only time to keep on adventuring, despite Ace's thoughts on the matter. (TV: Untitled)

Chronon, (WC: 14682 UNIT Field Log, 14683 UNIT Field Log, 14684 UNIT Field Log) or cronon (WC: 14681 UNIT Field Log) and artron energy readings during the recording of UNIT field logs included 17%, (WC: 14682 UNIT Field Log) 18%, 19%, (WC: 14681 UNIT Field Log, 14682 UNIT Field Log) 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, (WC: 14682 UNIT Field Log) 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, (WC: 14682 UNIT Field Log, 14684 UNIT Field Log) 90%, (WC: 14682 UNIT Field Log, 14683 UNIT Field Log) 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100%, 101%, 102%, 103%, 104%, 105%, 106%, and, in the case of Chronon energy, 107%. (WC: 14683 UNIT Field Log)

By 2022, Abby McPhail was 25 years old. (AUDIO: SOS)

Information from invalid sources
Diana Goddard was 25 years old in 2012. (NOTVALID: The Last Dalek)

The Doctor's Five Hundred Year Diary referenced "[ sums] of human knowledge" of 25%, 50%, 75%, and 100%. (NOTVALID: Tom Baker stars in John Lloyd's lost Doctor Who adventure, The Doomsday Contract)