file size & File name

i have this code which get me the file thumb (icon) and file link
but i want to add file size to it

$file = get_field('Book_Download');
if( $file ):

    // Extract variables.
    $urle = $file['url'];
    $titlee = $file['title'];
    $captione = $file['caption'];
    $icone = $file['icon'];

	
    // Display image thumbnail when possible.
    if( $file['type'] == 'pdf' ) {
        $icone =  $file['sizes']['thumbnail'];
    }
    // Begin caption wrap.
    if( $captione ): ?>
        <div class="wp-caption">
    <?php endif; ?>
    <a href="<?php echo esc_attr($urle); ?>" title="<?php echo esc_attr($titlee); ?>">
        <img src="<?php echo esc_attr($icone); ?>" />
        <span><?php echo esc_html($titlee); ?></span>
    </a>

    <?php 
    // End caption wrap.
    if($captione): ?>
        <p class="wp-caption-text"><?php echo esc_html($captione); ?></p>
        </div>

    <?php endif; ?>
<?php endif; ?>