为什么POW(5,2）成为24

我正在制作一个简单的计算器，您可以选择一个函数，然后是2个输入以获取答案。这是一个整洁的小程序，除了权力外，一切都顺利运行。每个数字都可以正常工作。

，但据此：5^2=24, 5^3=624。我正在使用pow(number1,number2)。

#include <iostream>
#include<math.h>
using namespace std;
int main()
{
    for(;;){
    int func;
    int number1;
    int number2;
    cout << "Input your function (+,-,x,/,Square,Power)(1,2,3,4,5,6) ";
    cin >> func;
    cout << "input #1: ";
    cin >> number1;
    cout << "input #2: ";
    cin >> number2;
    if (func==1){
        int answer;
        answer = number1 + number2;
        cout << number1 << " + " << number2 << " = " << answer << endl;
    }
    else {
            if (func==2){
            int answer;
            answer = number1 - number2;
            cout << number1 << " - " << number2 << " = " << answer << endl;
        }
        else {
            if (func==3){
                int answer;
                answer = number1 * number2;
                cout << number1 << " x " << number2 << " = " << answer << endl;
            }
            else {
               if (func==4){
                    int answer;
                    answer = number1 / number2;
                    int R = number1 % number2;
                    cout << number1 << " / " << number2<< " = " << answer  << " R "<< R << endl;
               }
                else {
                    if (func==5){
                        int answer;
                        answer = pow(number1,0.5);
                        cout << "√" << number1 << "=" << answer << endl;
                    }
                    else {
                        if (func==6){
                            int answer;
                            answer = pow(number1,number2);
                            cout << "√" << number1 << "^" << number2 << "=" << answer << endl;
                        }
                    }
                }
            }
            }
        }
    }
    }