565656545 has 16 divisors (see below), whose sum is σ = 701939520. Its totient is φ = 437346624.

The previous prime is 565656523. The next prime is 565656547. The reversal of 565656545 is 545656565.

565656545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a cyclic number.

It is not a de Polignac number, because 565656545 - 2¹⁰ = 565655521 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 565656545.

It is not an unprimeable number, because it can be changed into a prime (565656547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1826 + ... + 33684.

It is an arithmetic number, because the mean of its divisors is an integer number (43871220).

Almost surely, 2^565656545 is an apocalyptic number.

It is an amenable number.

565656545 is a deficient number, since it is larger than the sum of its proper divisors (136282975).

565656545 is a wasteful number, since it uses less digits than its factorization.

565656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31984.

The product of its digits is 2700000, while the sum is 47.

The square root of 565656545 is about 23783.5351661606. The cubic root of 565656545 is about 827.0230339132.

The spelling of 565656545 in words is "five hundred sixty-five million, six hundred fifty-six thousand, five hundred forty-five".