2056563 has 16 divisors (see below), whose sum is σ = 3100800. Its totient is φ = 1346760.

The previous prime is 2056553. The next prime is 2056573. The reversal of 2056563 is 3656502.

2056563 is a `hidden beast` number, since 2 + 0 + 5 + 656 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2056553) and next prime (2056573).

It is not a de Polignac number, because 2056563 - 2⁴ = 2056547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2056553) by changing a digit.

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, 948 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (193800).

2^2056563 is an apocalyptic number.

2056563 is a deficient number, since it is larger than the sum of its proper divisors (1044237).

2056563 is a wasteful number, since it uses less digits than its factorization.

2056563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2056563 is about 1434.0721739159. The cubic root of 2056563 is about 127.1688291367.

The spelling of 2056563 in words is "two million, fifty-six thousand, five hundred sixty-three".