206931055 has 8 divisors (see below), whose sum is σ = 262924272. Its totient is φ = 155806848.

The previous prime is 206931019. The next prime is 206931073. The reversal of 206931055 is 550139602.

206931055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206931055 - 2¹⁵ = 206898287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217157 + ... + 1217326.

It is an arithmetic number, because the mean of its divisors is an integer number (32865534).

Almost surely, 2^206931055 is an apocalyptic number.

206931055 is a deficient number, since it is larger than the sum of its proper divisors (55993217).

206931055 is a wasteful number, since it uses less digits than its factorization.

206931055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434505.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 206931055 is about 14385.0983660175. The cubic root of 206931055 is about 591.4824874944.

It can be divided in two parts, 2069 and 31055, that added together give a square (33124 = 182²).

The spelling of 206931055 in words is "two hundred six million, nine hundred thirty-one thousand, fifty-five".