2056565 has 16 divisors (see below), whose sum is σ = 2865792. Its totient is φ = 1387584.

The previous prime is 2056553. The next prime is 2056573. The reversal of 2056565 is 5656502.

It is a cyclic number.

It is not a de Polignac number, because 2056565 - 2⁶ = 2056501 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 1907 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (179112).

2^2056565 is an apocalyptic number.

It is an amenable number.

2056565 is a deficient number, since it is larger than the sum of its proper divisors (809227).

2056565 is an equidigital number, since it uses as much as digits as its factorization.

2056565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2056565 is about 1434.0728712307. The cubic root of 2056565 is about 127.1688703605.

The spelling of 2056565 in words is "two million, fifty-six thousand, five hundred sixty-five".