2104255105 has 4 divisors (see below), whose sum is σ = 2525106132. Its totient is φ = 1683404080.

The previous prime is 2104255081. The next prime is 2104255117. The reversal of 2104255105 is 5015524012.

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 1169913616 + 934341489 = 34204^2 + 30567^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2104255105 is a prime.

It is a super-2 number, since 2×2104255105² = 8855779093837122050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104255105.

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, 210425506 + ... + 210425515.

It is an arithmetic number, because the mean of its divisors is an integer number (631276533).

Almost surely, 2^2104255105 is an apocalyptic number.

It is an amenable number.

2104255105 is a deficient number, since it is larger than the sum of its proper divisors (420851027).

2104255105 is an equidigital number, since it uses as much as digits as its factorization.

2104255105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420851026.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2104255105 is about 45872.1604570790. The cubic root of 2104255105 is about 1281.4435019110.

Adding to 2104255105 its reverse (5015524012), we get a palindrome (7119779117).

The spelling of 2104255105 in words is "two billion, one hundred four million, two hundred fifty-five thousand, one hundred five".