Find the odd number / letters / word from the given alternative:

The odd number in the given alternatives is $\boxed{34424}$.

In each of the other alternatives, the sum of the digits is a multiple of 3. For example, the sum of the digits in $25631$ is $2+5+6+3+1=17$, which is a multiple of 3. The sum of the digits in $33442$ is $3+3+4+4+2=18$, which is a multiple of 3. The sum of the digits in $52163$ is $5+2+1+6+3=17$, which is a multiple of 3. However, the sum of the digits in $34424$ is $3+4+4+2+4=17$, which is not a multiple of 3.