2104243555 has 16 divisors (see below), whose sum is σ = 2582143200. Its totient is φ = 1645678080.

The previous prime is 2104243553. The next prime is 2104243591. The reversal of 2104243555 is 5553424012.

It is not a de Polignac number, because 2104243555 - 2¹ = 2104243553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104243553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33691 + ... + 73099.

It is an arithmetic number, because the mean of its divisors is an integer number (161383950).

Almost surely, 2^2104243555 is an apocalyptic number.

2104243555 is a deficient number, since it is larger than the sum of its proper divisors (477899645).

2104243555 is a wasteful number, since it uses less digits than its factorization.

2104243555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39654.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2104243555 is about 45872.0345635552. The cubic root of 2104243555 is about 1281.4411573442.

Adding to 2104243555 its reverse (5553424012), we get a palindrome (7657667567).

The spelling of 2104243555 in words is "two billion, one hundred four million, two hundred forty-three thousand, five hundred fifty-five".