The square root of 9147449025625 is 3024475.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 9147449025625.
It is an unprimeable number.
Almost surely, 29147449025625 is an apocalyptic number.
9147449025625 is the 3024475-th square number.
9147449025625 is the 1512238-th centered octagonal number.
It is an amenable number.
9147449025625 is an frugal number, since it uses more digits than its factorization.
9147449025625 is an evil number, because the sum of its binary digits is even.
The spelling of 9147449025625 in words is "nine trillion, one hundred forty-seven billion, four hundred forty-nine million, twenty-five thousand, six hundred twenty-five".