208555 has 8 divisors (see below), whose sum is σ = 255312. Its totient is φ = 163488.

The previous prime is 208553. The next prime is 208577. The reversal of 208555 is 555802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208555 - 2¹ = 208553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (31914).

2²⁰⁸⁵⁵⁵ is an apocalyptic number.

208555 is a deficient number, since it is larger than the sum of its proper divisors (46757).

208555 is an equidigital number, since it uses as much as digits as its factorization.

208555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 208555 is about 456.6782236980. The cubic root of 208555 is about 59.3025728138.

It can be divided in two parts, 208 and 555, that multiplied together give a triangular number (115440 = T₄₈₀).

The spelling of 208555 in words is "two hundred eight thousand, five hundred fifty-five".