2565622 has 8 divisors (see below), whose sum is σ = 3972672. Its totient is φ = 1241400.

The previous prime is 2565611. The next prime is 2565643. The reversal of 2565622 is 2265652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20629 + ... + 20752.

It is an arithmetic number, because the mean of its divisors is an integer number (496584).

2^2565622 is an apocalyptic number.

2565622 is a deficient number, since it is larger than the sum of its proper divisors (1407050).

2565622 is a wasteful number, since it uses less digits than its factorization.

2565622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41414.

The product of its digits is 7200, while the sum is 28.

The square root of 2565622 is about 1601.7559114921. The cubic root of 2565622 is about 136.8981429839.

The spelling of 2565622 in words is "two million, five hundred sixty-five thousand, six hundred twenty-two".