535565969 has 2 divisors, whose sum is σ = 535565970. Its totient is φ = 535565968.

The previous prime is 535565959. The next prime is 535566019. The reversal of 535565969 is 969565535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511438225 + 24127744 = 22615^2 + 4912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-535565969 is a prime.

It is a super-2 number, since 2×535565969² = 573661814301817922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 535565969.

It is not a weakly prime, because it can be changed into another prime (535565959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267782984 + 267782985.

It is an arithmetic number, because the mean of its divisors is an integer number (267782985).

Almost surely, 2^535565969 is an apocalyptic number.

It is an amenable number.

535565969 is a deficient number, since it is larger than the sum of its proper divisors (1).

535565969 is an equidigital number, since it uses as much as digits as its factorization.

535565969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5467500, while the sum is 53.

The square root of 535565969 is about 23142.2982652977. The cubic root of 535565969 is about 812.0903024495.

The spelling of 535565969 in words is "five hundred thirty-five million, five hundred sixty-five thousand, nine hundred sixty-nine".