How long does it take for the umbilical cord to fall off?

Rosie

Since having my first born 4 years ago I’ve forgotten a lot of things. How long does it take for my newborn’s umbilical cord to fall off? He is 1 week old now and it’s still attached. It’s lifting and stuff, but hasn’t quite fallen off. Though I don’t remember how long it took to fall off I remember it falling off quite easily for my oldest. I’ve been cleaning it with alcohol, because the nurse at the hospital said that would help it dry out.