2103555039 has 4 divisors (see below), whose sum is σ = 2804740056. Its totient is φ = 1402370024.

The previous prime is 2103555029. The next prime is 2103555053. The reversal of 2103555039 is 9305553012.

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 2103555039 - 2⁷ = 2103554911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103555029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350592504 + ... + 350592509.

It is an arithmetic number, because the mean of its divisors is an integer number (701185014).

Almost surely, 2^2103555039 is an apocalyptic number.

2103555039 is a deficient number, since it is larger than the sum of its proper divisors (701185017).

2103555039 is an equidigital number, since it uses as much as digits as its factorization.

2103555039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701185016.

The product of its (nonzero) digits is 20250, while the sum is 33.

The square root of 2103555039 is about 45864.5292028600. The cubic root of 2103555039 is about 1281.3013780579.

The spelling of 2103555039 in words is "two billion, one hundred three million, five hundred fifty-five thousand, thirty-nine".