How many zombies need to be killed to get the "Zombie Genocider" achievement in Dead Rising (2006)?

To obtain the "Zombie Genocider" achievement in Dead Rising (2006), players need to successfully kill 53,594 zombies throughout the game. This specific number was chosen as a reference to George A. Romero's classic zombie film, Dawn of the Dead (1978), where the main characters take refuge in a shopping mall, which coincidentally serves as the main setting for Dead Rising. This achievement requires significant time and effort as players explore the mall and its surrounding areas, utilizing various weapons and strategies to eliminate the undead horde.