// Count customers
$args = array(
    'role'      => 'Customer',
    'fields'    => 'ID'
    );

$customers = get_users($args);

echo count($customers) + 35000;


// Count orders
$args = array(
    'post_type' => 'shop_order',
    'fields'    => 'ID',
    'nopaging'  => true
    );

$orders = get_posts($args);

echo count($orders) + 35000;