Luther Hargreeves: How long were you there?

Number Five: Forty-five years. Give or take.

Luther Hargreeves: So what are you saying? That you’re 58?

Number Five: No, my consciousness is 58. Apparently, my body is now 13 again.

Vanya Hargreeves: Wait, how does that even work?

Number Five: Delores kept saying the equations were off. Eh. Bet she’s laughing now.

From The Umbrella Academy – Season 1 Episode 1: ‘We Only See Each Other at Weddings and Funerals’ (1×01)