8125855 has 4 divisors (see below), whose sum is σ = 9751032. Its totient is φ = 6500680.

The previous prime is 8125837. The next prime is 8125867. The reversal of 8125855 is 5585218.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8125855 - 2⁵ = 8125823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8125855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812581 + ... + 812590.

It is an arithmetic number, because the mean of its divisors is an integer number (2437758).

Almost surely, 2^8125855 is an apocalyptic number.

8125855 is a deficient number, since it is larger than the sum of its proper divisors (1625177).

8125855 is a wasteful number, since it uses less digits than its factorization.

8125855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625176.

The product of its digits is 16000, while the sum is 34.

The square root of 8125855 is about 2850.5885357238. The cubic root of 8125855 is about 201.0433394165.

The spelling of 8125855 in words is "eight million, one hundred twenty-five thousand, eight hundred fifty-five".