The number 454 has no well-established symbolic meaning in biblical or Jewish tradition.
454 is not a number highlighted with special symbolism in the Bible or in traditional Jewish numerology. It appears in the book of Ezra (Ezra 2:15), where 454 is given as the number of descendants of Adin who returned from exile in Babylon. This is a historical-demographic reference linked to the registration of returning exiles, rather than a number with symbolic meaning. The occurrence testifies to the precise record-keeping that was done when the Jews returned to rebuild the temple and community in Jerusalem after the Babylonian captivity. The name Adin (עָדִין) means "chosen" or "refined" in Hebrew. The Adin clan is one of many families listed in the returnee lists in Ezra 2 and Nehemiah 7, where the number of descendants varies slightly between the two lists (454 in Ezra 2:15 versus 655 in Nehemiah 7:20). In gematria, 454 can be broken down into Hebrew letter values, but the number has no widely recognized mystical or theological interpretation in Kabbalistic tradition.*