2565393 has 4 divisors (see below), whose sum is σ = 3420528. Its totient is φ = 1710260.

The previous prime is 2565391. The next prime is 2565403. The reversal of 2565393 is 3935652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2565393 - 2¹ = 2565391 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 5 + 6⁸ + 5 + 3¹¹ + 9⁶ + 3¹¹ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2565391) 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, 427563 + ... + 427568.

It is an arithmetic number, because the mean of its divisors is an integer number (855132).

2^2565393 is an apocalyptic number.

It is an amenable number.

2565393 is a deficient number, since it is larger than the sum of its proper divisors (855135).

2565393 is an equidigital number, since it uses as much as digits as its factorization.

2565393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855134.

The product of its digits is 24300, while the sum is 33.

The square root of 2565393 is about 1601.6844258467. The cubic root of 2565393 is about 136.8940698186.

The spelling of 2565393 in words is "two million, five hundred sixty-five thousand, three hundred ninety-three".