25568565 has 32 divisors (see below), whose sum is σ = 45190656. Its totient is φ = 12240960.

The previous prime is 25568563. The next prime is 25568567. The reversal of 25568565 is 56586552.

It is an interprime number because it is at equal distance from previous prime (25568563) and next prime (25568567).

It is not a de Polignac number, because 25568565 - 2¹ = 25568563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25568563) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12762 + ... + 14628.

It is an arithmetic number, because the mean of its divisors is an integer number (1412208).

Almost surely, 2^25568565 is an apocalyptic number.

It is an amenable number.

25568565 is a deficient number, since it is larger than the sum of its proper divisors (19622091).

25568565 is a wasteful number, since it uses less digits than its factorization.

25568565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969.

The product of its digits is 360000, while the sum is 42.

The square root of 25568565 is about 5056.5368583646. The cubic root of 25568565 is about 294.6018376374.

The spelling of 25568565 in words is "twenty-five million, five hundred sixty-eight thousand, five hundred sixty-five".