63163566225 has 36 divisors (see below), whose sum is σ = 113332022700. Its totient is φ = 33627962880.

The previous prime is 63163566209. The next prime is 63163566241. The reversal of 63163566225 is 52266536136.

63163566225 is a `hidden beast` number, since 6 + 3 + 1 + 63 + 566 + 2 + 25 = 666.

63163566225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63163566209) and next prime (63163566241).

It can be written as a sum of positive squares in 6 ways, for example, as 18612599184 + 44550967041 = 136428^2 + 211071^2 .

It is not a de Polignac number, because 63163566225 - 2⁴ = 63163566209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118660 + ... + 374709.

Almost surely, 2^63163566225 is an apocalyptic number.

It is an amenable number.

63163566225 is a deficient number, since it is larger than the sum of its proper divisors (50168456475).

63163566225 is a wasteful number, since it uses less digits than its factorization.

63163566225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493954 (or 493946 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 63163566225 in words is "sixty-three billion, one hundred sixty-three million, five hundred sixty-six thousand, two hundred twenty-five".