206555045 has 16 divisors (see below), whose sum is σ = 255612672. Its totient is φ = 160155840.

The previous prime is 206555029. The next prime is 206555093. The reversal of 206555045 is 540555602.

It is not a de Polignac number, because 206555045 - 2⁴ = 206555029 is a prime.

It is a super-2 number, since 2×206555045² = 85329973229904050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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, 17300 + ... + 26690.

It is an arithmetic number, because the mean of its divisors is an integer number (15975792).

Almost surely, 2^206555045 is an apocalyptic number.

It is an amenable number.

206555045 is a deficient number, since it is larger than the sum of its proper divisors (49057627).

206555045 is an equidigital number, since it uses as much as digits as its factorization.

206555045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 206555045 is about 14372.0229960851. The cubic root of 206555045 is about 591.1240135502.

The spelling of 206555045 in words is "two hundred six million, five hundred fifty-five thousand, forty-five".