A cuboid block with a length of 25 cm, a width of 15 cm, and a height of 9 cm is sawed into several cubes of equal size, and then assembled into a large cube. What is the surface area of this cube in square centimetres.
把一个长25厘米，宽15厘米，高9厘米的长方体木块锯成若干个大小相等的正方体，然后拼成一个大的正方体．这个正方体的表面积是多少平方厘米．
<gadget id="calculator">15 * 15 * 6</gadget>
<output>1_350</output>

<result>1_350</result>