206609053 has 8 divisors (see below), whose sum is σ = 239359808. Its totient is φ = 174667104.

The previous prime is 206609033. The next prime is 206609057. The reversal of 206609053 is 350906602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206609053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206609057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201651 + ... + 202672.

It is an arithmetic number, because the mean of its divisors is an integer number (29919976).

Almost surely, 2^206609053 is an apocalyptic number.

It is an amenable number.

206609053 is a deficient number, since it is larger than the sum of its proper divisors (32750755).

206609053 is an equidigital number, since it uses as much as digits as its factorization.

206609053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404403.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 206609053 is about 14373.9018015290. The cubic root of 206609053 is about 591.1755295091.

The spelling of 206609053 in words is "two hundred six million, six hundred nine thousand, fifty-three".