545

This number is a composite.

+ The smallest palindrome resulting from the sum of an ascending sequence of consecutive primes with a descending sequence of the same primes as exponents (27 + 35 + 53 + 72 = 545). [Gevisier]

+ 1*1! + 2*2! + 3*3! + ... + 545*545! is a titanic prime. [Firoozbakht]

+ n6 + 545 is composite for n = 1303, ..., 10583. [Wesolowski]

(There are 4 curios for this number that have not yet been approved by an editor.)

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