2256564 has 24 divisors (see below), whose sum is σ = 5378688. Its totient is φ = 736000.

The previous prime is 2256559. The next prime is 2256571. The reversal of 2256564 is 4656522.

2256564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1437 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (224112).

2^2256564 is an apocalyptic number.

It is an amenable number.

2256564 is an abundant number, since it is smaller than the sum of its proper divisors (3122124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2256564 is a wasteful number, since it uses less digits than its factorization.

2256564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4053 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2256564 is about 1502.1864065421. The cubic root of 2256564 is about 131.1643722664.

It can be divided in two parts, 2256 and 564, that multiplied together give a square (1272384 = 1128²).

The spelling of 2256564 in words is "two million, two hundred fifty-six thousand, five hundred sixty-four".