It is a strong prime.
It is a cyclic number.
Almost surely, 253520404626627 is an apocalyptic number.
53520404626627 is an equidigital number, since it uses as much as digits as its factorization.
53520404626627 is an evil number, because the sum of its binary digits is even.
The spelling of 53520404626627 in words is "fifty-three trillion, five hundred twenty billion, four hundred four million, six hundred twenty-six thousand, six hundred twenty-seven".