8563944025 has 144 divisors (see below), whose sum is σ = 13776403968. Its totient is φ = 5166720000.

The previous prime is 8563944019. The next prime is 8563944041. The reversal of 8563944025 is 5204493658.

It is not a de Polignac number, because 8563944025 - 2³ = 8563944017 is a prime.

It is a super-2 number, since 2×8563944025² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 84791475 + ... + 84791575.

It is an arithmetic number, because the mean of its divisors is an integer number (95669472).

Almost surely, 2^8563944025 is an apocalyptic number.

It is an amenable number.

8563944025 is a deficient number, since it is larger than the sum of its proper divisors (5212459943).

8563944025 is a wasteful number, since it uses less digits than its factorization.

8563944025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The square root of 8563944025 is about 92541.5799789478. The cubic root of 8563944025 is about 2045.9323685667.

The spelling of 8563944025 in words is "eight billion, five hundred sixty-three million, nine hundred forty-four thousand, twenty-five".