8255565 has 24 divisors (see below), whose sum is σ = 14376960. Its totient is φ = 4382304.

The previous prime is 8255563. The next prime is 8255567. The reversal of 8255565 is 5655528.

It is an interprime number because it is at equal distance from previous prime (8255563) and next prime (8255567).

It is not a de Polignac number, because 8255565 - 2¹ = 8255563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16996 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (599040).

Almost surely, 2^8255565 is an apocalyptic number.

8255565 is the 1437-th decagonal number.

It is an amenable number.

8255565 is a deficient number, since it is larger than the sum of its proper divisors (6121395).

8255565 is a wasteful number, since it uses less digits than its factorization.

8255565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 870 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 8255565 is about 2873.2499021143. The cubic root of 8255565 is about 202.1074241541.

The spelling of 8255565 in words is "eight million, two hundred fifty-five thousand, five hundred sixty-five".