2565427 has 4 divisors (see below), whose sum is σ = 2653920. Its totient is φ = 2476936.

The previous prime is 2565403. The next prime is 2565449. The reversal of 2565427 is 7245652.

2565427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565427 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁷ + 6⁵ + 5⁹ + 4² + 2¹⁹ + 7² .

It is a Duffinian number.

2565427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2560427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44203 + ... + 44260.

It is an arithmetic number, because the mean of its divisors is an integer number (663480).

2^2565427 is an apocalyptic number.

2565427 is a deficient number, since it is larger than the sum of its proper divisors (88493).

2565427 is an equidigital number, since it uses as much as digits as its factorization.

2565427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88492.

The product of its digits is 16800, while the sum is 31.

The square root of 2565427 is about 1601.6950396377. The cubic root of 2565427 is about 136.8946745833.

It can be divided in two parts, 2565 and 427, that added together give a palindrome (2992).

The spelling of 2565427 in words is "two million, five hundred sixty-five thousand, four hundred twenty-seven".