208856225 has 12 divisors (see below), whose sum is σ = 260150016. Its totient is φ = 166331280.

The previous prime is 208856213. The next prime is 208856233. The reversal of 208856225 is 522658802.

It is a happy number.

It is not a de Polignac number, because 208856225 - 2⁴ = 208856209 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 13157 + ... + 24306.

It is an arithmetic number, because the mean of its divisors is an integer number (21679168).

Almost surely, 2^208856225 is an apocalyptic number.

208856225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208856225 is a deficient number, since it is larger than the sum of its proper divisors (51293791).

208856225 is a wasteful number, since it uses less digits than its factorization.

208856225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37696 (or 37691 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 208856225 is about 14451.8588769750. The cubic root of 208856225 is about 593.3111016863.

The spelling of 208856225 in words is "two hundred eight million, eight hundred fifty-six thousand, two hundred twenty-five".