2605215413 has 2 divisors, whose sum is σ = 2605215414. Its totient is φ = 2605215412.

The previous prime is 2605215397. The next prime is 2605215443. The reversal of 2605215413 is 3145125062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2542378084 + 62837329 = 50422^2 + 7927^2 .

It is a cyclic number.

It is not a de Polignac number, because 2605215413 - 2⁴ = 2605215397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2605215443) by changing a digit.

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 as a sum of consecutive naturals, namely, 1302607706 + 1302607707.

It is an arithmetic number, because the mean of its divisors is an integer number (1302607707).

Almost surely, 2^2605215413 is an apocalyptic number.

It is an amenable number.

2605215413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605215413 is an equidigital number, since it uses as much as digits as its factorization.

2605215413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2605215413 is about 51041.3108471951. The cubic root of 2605215413 is about 1375.9876827377.

The spelling of 2605215413 in words is "two billion, six hundred five million, two hundred fifteen thousand, four hundred thirteen".