2104450555 has 4 divisors (see below), whose sum is σ = 2525340672. Its totient is φ = 1683560440.

The previous prime is 2104450547. The next prime is 2104450571. The reversal of 2104450555 is 5550544012.

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

It is not a de Polignac number, because 2104450555 - 2³ = 2104450547 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210445051 + ... + 210445060.

It is an arithmetic number, because the mean of its divisors is an integer number (631335168).

Almost surely, 2^2104450555 is an apocalyptic number.

2104450555 is a deficient number, since it is larger than the sum of its proper divisors (420890117).

2104450555 is an equidigital number, since it uses as much as digits as its factorization.

2104450555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420890116.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2104450555 is about 45874.2907847086. The cubic root of 2104450555 is about 1281.4831755509.

Adding to 2104450555 its reverse (5550544012), we get a palindrome (7654994567).

The spelling of 2104450555 in words is "two billion, one hundred four million, four hundred fifty thousand, five hundred fifty-five".