536645569 has 2 divisors, whose sum is σ = 536645570. Its totient is φ = 536645568.

The previous prime is 536645567. The next prime is 536645573. The reversal of 536645569 is 965546635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440370225 + 96275344 = 20985^2 + 9812^2 .

It is a cyclic number.

It is not a de Polignac number, because 536645569 - 2¹ = 536645567 is a prime.

It is a super-2 number, since 2×536645569² = 575976933454667522, which contains 22 as substring.

Together with 536645567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (536645567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268322784 + 268322785.

It is an arithmetic number, because the mean of its divisors is an integer number (268322785).

Almost surely, 2^536645569 is an apocalyptic number.

It is an amenable number.

536645569 is a deficient number, since it is larger than the sum of its proper divisors (1).

536645569 is an equidigital number, since it uses as much as digits as its factorization.

536645569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916000, while the sum is 49.

The square root of 536645569 is about 23165.6117769421. The cubic root of 536645569 is about 812.6356098382.

The spelling of 536645569 in words is "five hundred thirty-six million, six hundred forty-five thousand, five hundred sixty-nine".