2605163875 has 8 divisors (see below), whose sum is σ = 3251244672. Its totient is φ = 2084131000.

The previous prime is 2605163843. The next prime is 2605163927. The reversal of 2605163875 is 5783615062.

It is not a de Polignac number, because 2605163875 - 2⁵ = 2605163843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10420531 + ... + 10420780.

It is an arithmetic number, because the mean of its divisors is an integer number (406405584).

Almost surely, 2^2605163875 is an apocalyptic number.

2605163875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2605163875 is a deficient number, since it is larger than the sum of its proper divisors (646080797).

2605163875 is an equidigital number, since it uses as much as digits as its factorization.

2605163875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20841326 (or 20841316 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2605163875 is about 51040.8059791379. The cubic root of 2605163875 is about 1375.9786091284.

The spelling of 2605163875 in words is "two billion, six hundred five million, one hundred sixty-three thousand, eight hundred seventy-five".