206555201 has 16 divisors (see below), whose sum is σ = 221273088. Its totient is φ = 192456000.

The previous prime is 206555183. The next prime is 206555291. The reversal of 206555201 is 102555602.

It is a cyclic number.

It is not a de Polignac number, because 206555201 - 2¹⁰ = 206554177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206555291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114956 + ... + 116738.

It is an arithmetic number, because the mean of its divisors is an integer number (13829568).

Almost surely, 2^206555201 is an apocalyptic number.

It is an amenable number.

206555201 is a deficient number, since it is larger than the sum of its proper divisors (14717887).

206555201 is a wasteful number, since it uses less digits than its factorization.

206555201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 206555201 is about 14372.0284232950. The cubic root of 206555201 is about 591.1241623650.

The spelling of 206555201 in words is "two hundred six million, five hundred fifty-five thousand, two hundred one".