536565643 has 16 divisors (see below), whose sum is σ = 590618880. Its totient is φ = 485188704.

The previous prime is 536565619. The next prime is 536565649. The reversal of 536565643 is 346565635.

It is a cyclic number.

It is not a de Polignac number, because 536565643 - 2⁹ = 536565131 is a prime.

It is a super-3 number, since 3×536565643³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 536565643.

It is not an unprimeable number, because it can be changed into a prime (536565649) 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, 266880 + ... + 268882.

It is an arithmetic number, because the mean of its divisors is an integer number (36913680).

Almost surely, 2^536565643 is an apocalyptic number.

536565643 is a deficient number, since it is larger than the sum of its proper divisors (54053237).

536565643 is a wasteful number, since it uses less digits than its factorization.

536565643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its digits is 972000, while the sum is 43.

The square root of 536565643 is about 23163.8866125700. The cubic root of 536565643 is about 812.5952641910.

The spelling of 536565643 in words is "five hundred thirty-six million, five hundred sixty-five thousand, six hundred forty-three".