206551255 has 8 divisors (see below), whose sum is σ = 248146272. Its totient is φ = 165051168.

The previous prime is 206551249. The next prime is 206551259. The reversal of 206551255 is 552155602.

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 206551255 - 2⁷ = 206551127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206551259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18852 + ... + 27721.

It is an arithmetic number, because the mean of its divisors is an integer number (31018284).

Almost surely, 2^206551255 is an apocalyptic number.

206551255 is a deficient number, since it is larger than the sum of its proper divisors (41595017).

206551255 is an equidigital number, since it uses as much as digits as its factorization.

206551255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47465.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 206551255 is about 14371.8911420870. The cubic root of 206551255 is about 591.1203980915.

The spelling of 206551255 in words is "two hundred six million, five hundred fifty-one thousand, two hundred fifty-five".