It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 55010601706521.
Almost surely, 255010601706521 is an apocalyptic number.
It is an amenable number.
55010601706521 is a wasteful number, since it uses less digits than its factorization.
55010601706521 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 516789.
The spelling of 55010601706521 in words is "fifty-five trillion, ten billion, six hundred one million, seven hundred six thousand, five hundred twenty-one".