265

Number
$265$ (two hundred and sixty-five) is:


 * $5 \times 53$


 * The $6$th subfactorial after $0, 1, 2, 9, 44$:
 * $265 = 6! \left({1 - \dfrac 1 {1!} + \dfrac 1 {2!} - \dfrac 1 {3!} + \dfrac 1 {4!} - \dfrac 1 {5!} + \dfrac 1 {6!} }\right)$


 * The $14$th number after $1, 3, 22, 66, 70, 81, 94, 115, 119, 170, 210, 214, 217$ whose $\sigma$ value is square: