206553103 has 4 divisors (see below), whose sum is σ = 206587528. Its totient is φ = 206518680.

The previous prime is 206553101. The next prime is 206553107. The reversal of 206553103 is 301355602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206553103 - 2¹ = 206553101 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 (206553101) 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 3 ways as a sum of consecutive naturals, for example, 5601 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (51646882).

Almost surely, 2^206553103 is an apocalyptic number.

206553103 is a deficient number, since it is larger than the sum of its proper divisors (34425).

206553103 is an equidigital number, since it uses as much as digits as its factorization.

206553103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34424.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 206553103 is about 14371.9554341085. The cubic root of 206553103 is about 591.1221609909.

The spelling of 206553103 in words is "two hundred six million, five hundred fifty-three thousand, one hundred three".