2104404553 has 4 divisors (see below), whose sum is σ = 2104642948. Its totient is φ = 2104166160.

The previous prime is 2104404521. The next prime is 2104404557. The reversal of 2104404553 is 3554044012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1822265344 + 282139209 = 42688^2 + 16797^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104404553 - 2⁵ = 2104404521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104404557) 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, 105426 + ... + 123787.

It is an arithmetic number, because the mean of its divisors is an integer number (526160737).

Almost surely, 2^2104404553 is an apocalyptic number.

It is an amenable number.

2104404553 is a deficient number, since it is larger than the sum of its proper divisors (238395).

2104404553 is an equidigital number, since it uses as much as digits as its factorization.

2104404553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238394.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2104404553 is about 45873.7893900210. The cubic root of 2104404553 is about 1281.4738380038.

Adding to 2104404553 its reverse (3554044012), we get a palindrome (5658448565).

The spelling of 2104404553 in words is "two billion, one hundred four million, four hundred four thousand, five hundred fifty-three".