8631647025 has 12 divisors (see below), whose sum is σ = 14270989872. Its totient is φ = 4603545040.

The previous prime is 8631646993. The next prime is 8631647027. The reversal of 8631647025 is 5207461368.

It is not a de Polignac number, because 8631647025 - 2⁵ = 8631646993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8631647027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57544239 + ... + 57544388.

It is an arithmetic number, because the mean of its divisors is an integer number (1189249156).

Almost surely, 2^8631647025 is an apocalyptic number.

It is an amenable number.

8631647025 is a deficient number, since it is larger than the sum of its proper divisors (5639342847).

8631647025 is a wasteful number, since it uses less digits than its factorization.

8631647025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115088640 (or 115088635 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 8631647025 is about 92906.6575924460. The cubic root of 8631647025 is about 2051.3096549116.

The spelling of 8631647025 in words is "eight billion, six hundred thirty-one million, six hundred forty-seven thousand, twenty-five".