2605205023 has 2 divisors, whose sum is σ = 2605205024. Its totient is φ = 2605205022.

The previous prime is 2605205021. The next prime is 2605205081. The reversal of 2605205023 is 3205025062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2605205023 - 2¹ = 2605205021 is a prime.

Together with 2605205021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2605205021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302602511 + 1302602512.

It is an arithmetic number, because the mean of its divisors is an integer number (1302602512).

Almost surely, 2^2605205023 is an apocalyptic number.

2605205023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605205023 is an equidigital number, since it uses as much as digits as its factorization.

2605205023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2605205023 is about 51041.2090667923. The cubic root of 2605205023 is about 1375.9858535184.

The spelling of 2605205023 in words is "two billion, six hundred five million, two hundred five thousand, twenty-three".