856234225 has 96 divisors (see below), whose sum is σ = 1403910144. Its totient is φ = 502233600.

The previous prime is 856234213. The next prime is 856234237. The reversal of 856234225 is 522432658.

It is an interprime number because it is at equal distance from previous prime (856234213) and next prime (856234237).

It is not a de Polignac number, because 856234225 - 2⁷ = 856234097 is a prime.

It is a super-2 number, since 2×856234225² = 1466274096122701250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3674709 + ... + 3674941.

It is an arithmetic number, because the mean of its divisors is an integer number (14624064).

Almost surely, 2^856234225 is an apocalyptic number.

It is an amenable number.

856234225 is a deficient number, since it is larger than the sum of its proper divisors (547675919).

856234225 is a wasteful number, since it uses less digits than its factorization.

856234225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 362 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 856234225 is about 29261.4802257165. The cubic root of 856234225 is about 949.5784741183.

The spelling of 856234225 in words is "eight hundred fifty-six million, two hundred thirty-four thousand, two hundred twenty-five".