Weekly sales of a brand-name kitchen cleanser at a supermarket are believed to be Normally distributed with a mean of 2,550 bottles and a standard deviation of 415 bottles. The store manager places an order at the beginning of each week for the cleanser. She would like to carry enough bottles of the cleanser so that the probability of stocking out (i.e., not having enough bottles of cleanser) is only 2.5%. How many bottles should she order each week? [please round the answer to the closest integer]
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