2265566 has 4 divisors (see below), whose sum is σ = 3398352. Its totient is φ = 1132782.

The previous prime is 2265551. The next prime is 2265581. The reversal of 2265566 is 6655622.

2265566 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, and also an emirpimes, since its reverse is a distinct semiprime: 6655622 = 2 ⋅3327811.

It is an interprime number because it is at equal distance from previous prime (2265551) and next prime (2265581).

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹⁸ + 6⁴ + 5² + 5⁹ + 6⁴ + 6⁶ .

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 as a sum of consecutive naturals, namely, 566390 + ... + 566393.

It is an arithmetic number, because the mean of its divisors is an integer number (849588).

2^2265566 is an apocalyptic number.

2265566 is a deficient number, since it is larger than the sum of its proper divisors (1132786).

2265566 is a wasteful number, since it uses less digits than its factorization.

2265566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132785.

The product of its digits is 21600, while the sum is 32.

The square root of 2265566 is about 1505.1797234882. The cubic root of 2265566 is about 131.3385567135.

The spelling of 2265566 in words is "two million, two hundred sixty-five thousand, five hundred sixty-six".