2565313 has 4 divisors (see below), whose sum is σ = 2579668. Its totient is φ = 2550960.

The previous prime is 2565289. The next prime is 2565319. The reversal of 2565313 is 3135652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 1620529 = 972^2 + 1273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2565319) 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, 6906 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (644917).

2^2565313 is an apocalyptic number.

It is an amenable number.

2565313 is a deficient number, since it is larger than the sum of its proper divisors (14355).

2565313 is a wasteful number, since it uses less digits than its factorization.

2565313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14354.

The product of its digits is 2700, while the sum is 25.

The square root of 2565313 is about 1601.6594519435. The cubic root of 2565313 is about 136.8926468216.

The spelling of 2565313 in words is "two million, five hundred sixty-five thousand, three hundred thirteen".