אֵ֛לֶּה פְּקוּדֵ֥י בְנֵֽי־יִשְׂרָאֵ֖ל לְבֵ֣ית אֲבֹתָ֑ם כָּל־פְּקוּדֵ֤י הַֽמַּחֲנֹת֙ לְצִבְאֹתָ֔ם שֵׁשׁ־מֵא֥וֹת אֶ֙לֶף֙ וּשְׁלֹ֣שֶׁת אֲלָפִ֔ים וַחֲמֵ֥שׁ מֵא֖וֹת וַחֲמִשִּֽׁים׃
以上是以色列人按著他們父家被數點的；各營中所有被數點的，按著他們的軍隊，共有六十萬零三千五百五十名。
Ibn Ezra
These are the numbers of Bnei Yisroel. “And so they traveled” (v. 34) as they were on the day they were counted. This means that in the twenty days not one of them died, and this was miraculous.
Rabbeinu Bahya
אלה פקודי בני ישראל ...שש מאות אלף ושלשת אלפים חמש מאות וחמישים, “These are the countings of the Children of Israel, ....603,550.” This same number has already been reported in 1,46. The reason the Torah repeats this number is only to draw our attention to the miracle that from the day the census took place until the day the people commenced their journeys on the 22nd day of the month not a single one of these people had died.