Prime Curios!: 52609

52609
(another Prime Pages' Curiosity)

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If we reverse the prime 52609 and square (90625² = 8212890625), the last five digits are 52609 reversed. Note that 8212890625² = 67451572418212890625 ends in 8212890625, while 5260982128142751547 (its reversal without the 6 on the end) is prime! [Kulsha]

Submitted: 2001-01-16 17:26:28; Last Modified: 2008-01-30 11:28:00.