2605344223 has 4 divisors (see below), whose sum is σ = 2605464288. Its totient is φ = 2605224160.

The previous prime is 2605344211. The next prime is 2605344229. The reversal of 2605344223 is 3224435062.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3224435062 = 2 ⋅1612217531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2605344223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605344229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17383 + ... + 74248.

It is an arithmetic number, because the mean of its divisors is an integer number (651366072).

Almost surely, 2^2605344223 is an apocalyptic number.

2605344223 is a deficient number, since it is larger than the sum of its proper divisors (120065).

2605344223 is an equidigital number, since it uses as much as digits as its factorization.

2605344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120064.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2605344223 is about 51042.5726526397. The cubic root of 2605344223 is about 1376.0103600759.

Adding to 2605344223 its reverse (3224435062), we get a palindrome (5829779285).

The spelling of 2605344223 in words is "two billion, six hundred five million, three hundred forty-four thousand, two hundred twenty-three".