JavaScript - Pasar el valor de un campo

$('.resumen-colegio li:nth-child(1) p').animateNumber({number:1500 }, 1200);

<?php

$numero=1500;

?>

<script>

$('.resumen-colegio li:nth-child(1) p').animateNumber({number:<?php echo $numero?> }, 1200);

</script>

<script src="js/vendor/modernizr-3.8.0.min.js"></script>

<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>

<script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>

<script src="js/plugins.js"></script>

<script src="js/jquery.animateNumber.min.js"></script>

<script src="js/jquery.lettering.js"></script>

<script src="js/jquery.lightbox.js"></script>

<script src="js/jquery.colorbox-min.js"></script>

<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js"></script>

<script src="js/otromain.js"></script>

<script src="js/app.js"></script>