206601055 has 16 divisors (see below), whose sum is σ = 251164800. Its totient is φ = 163129600.

The previous prime is 206601011. The next prime is 206601077. The reversal of 206601055 is 550106602.

It is not a de Polignac number, because 206601055 - 2¹¹ = 206599007 is a prime.

It is a super-2 number, since 2×206601055² = 85367991854226050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286986 + ... + 287704.

It is an arithmetic number, because the mean of its divisors is an integer number (15697800).

Almost surely, 2^206601055 is an apocalyptic number.

206601055 is a deficient number, since it is larger than the sum of its proper divisors (44563745).

206601055 is a wasteful number, since it uses less digits than its factorization.

206601055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 206601055 is about 14373.6235862777. The cubic root of 206601055 is about 591.1679011197.

Adding to 206601055 its reverse (550106602), we get a palindrome (756707657).

The spelling of 206601055 in words is "two hundred six million, six hundred one thousand, fifty-five".