2615

Number
$2615$ (two thousand, six hundred and fifteen) is:


 * $5 \times 523$


 * Has the property that its reversal multiplied by $11$ equals the reversal of its product with $11$:
 * $2615 \times 11 = 28 \, 765$; $5162 \times 11 = 56 \, 782$
 * Simply used by in his  as a canonical example of such a number.
 * Nothing to see here, move along now.

Also see

 * Reversal of Number Multiplied by 11