206106255 has 32 divisors (see below), whose sum is σ = 371589120. Its totient is φ = 108370080.

The previous prime is 206106253. The next prime is 206106269. The reversal of 206106255 is 552601602.

206106255 is a `hidden beast` number, since 20 + 6 + 10 + 625 + 5 = 666.

It is not a de Polignac number, because 206106255 - 2¹ = 206106253 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206106253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (11612160).

Almost surely, 2^206106255 is an apocalyptic number.

206106255 is a deficient number, since it is larger than the sum of its proper divisors (165482865).

206106255 is a wasteful number, since it uses less digits than its factorization.

206106255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588 (or 21582 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 206106255 is about 14356.4011855339. The cubic root of 206106255 is about 590.6955839050.

Adding to 206106255 its reverse (552601602), we get a palindrome (758707857).

The spelling of 206106255 in words is "two hundred six million, one hundred six thousand, two hundred fifty-five".