53
This number is a prime.
Single Curio View: (Seek other curios for this number)
53 is the average of the 5 two-digit primes with the
end-digit 7. Note that the the reversal of 53 is the
product of 5 an 7. [Silva]
Submitted: 2011-05-04 11:08:41; Last Modified: 2022-01-29 00:20:41.
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