Syntax error while running the c program despite having no problem during compiling

I am trying to run a basic program ‘hello world’using this code

#include<stdio.h>

int main()
{ 
 printf("hello worldn");
 return 0;
}

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There is no error while compiling but when i try to run the code the error is:

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./hello.c: line 2: syntax error near unexpected token'('
./hello.c: line 2: 'int main()'

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How can i solve this because ive tried everything and i dont think there is a syntax error.

gcc -o hello hello.c

./hello