www.mikescher.com/www/statics/euler/Euler_Problem-056.php

<?php

return 
[
	'number'      => 56,
	'date'        => '2015-04-29',
	'title'       => 'Powerful digit sum',
	'abbreviated' => false,
	'steps'       => 62461749,
	'time'        => 13915,
	'width'       => 75,
	'height'      => 11,
	'value'       => 972,
];