When a number is divided by 25, the quotient is 25 and the remainder is 24. What is the number?
一个数除以25，商是25，余数是24，这个数是多少．
<gadget id="calculator">25 * 25</gadget>
<output>625</output>

<gadget id="calculator">625 + 24</gadget>
<output>649</output>

<result>649</result>