8251565 has 16 divisors (see below), whose sum is σ = 11370240. Its totient is φ = 5631360.

The previous prime is 8251561. The next prime is 8251583. The reversal of 8251565 is 5651528.

It is not a de Polignac number, because 8251565 - 2² = 8251561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9416 + ... + 10254.

It is an arithmetic number, because the mean of its divisors is an integer number (710640).

Almost surely, 2^8251565 is an apocalyptic number.

It is an amenable number.

8251565 is a deficient number, since it is larger than the sum of its proper divisors (3118675).

8251565 is a wasteful number, since it uses less digits than its factorization.

8251565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 12000, while the sum is 32.

The square root of 8251565 is about 2872.5537418820. The cubic root of 8251565 is about 202.0747770730.

The spelling of 8251565 in words is "eight million, two hundred fifty-one thousand, five hundred sixty-five".