871255225 has 12 divisors (see below), whose sum is σ = 1080782140. Its totient is φ = 696729600.

The previous prime is 871255153. The next prime is 871255237. The reversal of 871255225 is 522552178.

It can be written as a sum of positive squares in 6 ways, for example, as 69006249 + 802248976 = 8307^2 + 28324^2 .

It is not a de Polignac number, because 871255225 - 2¹⁷ = 871124153 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78841 + ... + 89209.

Almost surely, 2^871255225 is an apocalyptic number.

It is an amenable number.

871255225 is a deficient number, since it is larger than the sum of its proper divisors (209526915).

871255225 is a wasteful number, since it uses less digits than its factorization.

871255225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13740 (or 13735 counting only the distinct ones).

The product of its digits is 56000, while the sum is 37.

The square root of 871255225 is about 29517.0327946425. The cubic root of 871255225 is about 955.0991646156.

The spelling of 871255225 in words is "eight hundred seventy-one million, two hundred fifty-five thousand, two hundred twenty-five".