2605315 has 4 divisors (see below), whose sum is σ = 3126384. Its totient is φ = 2084248.

The previous prime is 2605313. The next prime is 2605319. The reversal of 2605315 is 5135062.

2605315 = 23⁴ + 24⁴ + ... + 28⁴.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5135062 = 2 ⋅2567531.

It is a cyclic number.

It is not a de Polignac number, because 2605315 - 2¹ = 2605313 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260527 + ... + 260536.

It is an arithmetic number, because the mean of its divisors is an integer number (781596).

2^2605315 is an apocalyptic number.

2605315 is a deficient number, since it is larger than the sum of its proper divisors (521069).

2605315 is an equidigital number, since it uses as much as digits as its factorization.

2605315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521068.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2605315 is about 1614.0988197753. The cubic root of 2605315 is about 137.6005215356.

The spelling of 2605315 in words is "two million, six hundred five thousand, three hundred fifteen".