6565225656 has 64 divisors (see below), whose sum is σ = 17912718720. Its totient is φ = 1988622720.

The previous prime is 6565225651. The next prime is 6565225661.

6565225656 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6565225651) and next prime (6565225661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6565225651) 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, 950391 + ... + 957273.

It is an arithmetic number, because the mean of its divisors is an integer number (279886230).

Almost surely, 2^6565225656 is an apocalyptic number.

6565225656 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6565225656 is an abundant number, since it is smaller than the sum of its proper divisors (11347493064).

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

6565225656 is a wasteful number, since it uses less digits than its factorization.

6565225656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516 (or 10512 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 48.

The square root of 6565225656 is about 81026.0800977068. The cubic root of 6565225656 is about 1872.4772620698.

It can be divided in two parts, 6565 and 225656, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 6565225656 in words is "six billion, five hundred sixty-five million, two hundred twenty-five thousand, six hundred fifty-six".