8525663172 has 72 divisors (see below), whose sum is σ = 23219903616. Its totient is φ = 2622020544.

The previous prime is 8525663117. The next prime is 8525663177. The reversal of 8525663172 is 2713665258.

8525663172 is a `hidden beast` number, since 8 + 5 + 2 + 5 + 6 + 631 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (8525663177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1591803 + ... + 1597149.

Almost surely, 2^8525663172 is an apocalyptic number.

It is an amenable number.

8525663172 is an abundant number, since it is smaller than the sum of its proper divisors (14694240444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8525663172 is a wasteful number, since it uses less digits than its factorization.

8525663172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777 (or 8772 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 8525663172 is about 92334.5177709831. The cubic root of 8525663172 is about 2042.8793739960.

The spelling of 8525663172 in words is "eight billion, five hundred twenty-five million, six hundred sixty-three thousand, one hundred seventy-two".