2565793 has 4 divisors (see below), whose sum is σ = 2716740. Its totient is φ = 2414848.

The previous prime is 2565791. The next prime is 2565799. The reversal of 2565793 is 3975652.

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 2214144 + 351649 = 1488^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565793 - 2¹ = 2565791 is a prime.

It is a Duffinian number.

2565793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2565791) 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, 75448 + ... + 75481.

It is an arithmetic number, because the mean of its divisors is an integer number (679185).

2^2565793 is an apocalyptic number.

It is an amenable number.

2565793 is a deficient number, since it is larger than the sum of its proper divisors (150947).

2565793 is a wasteful number, since it uses less digits than its factorization.

2565793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150946.

The product of its digits is 56700, while the sum is 37.

The square root of 2565793 is about 1601.8092895223. The cubic root of 2565793 is about 136.9011843597.

The spelling of 2565793 in words is "two million, five hundred sixty-five thousand, seven hundred ninety-three".