566535397 has 2 divisors, whose sum is σ = 566535398. Its totient is φ = 566535396.

The previous prime is 566535377. The next prime is 566535433. The reversal of 566535397 is 793535665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489692641 + 76842756 = 22129^2 + 8766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566535397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566535397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566535377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283267698 + 283267699.

It is an arithmetic number, because the mean of its divisors is an integer number (283267699).

Almost surely, 2^566535397 is an apocalyptic number.

It is an amenable number.

566535397 is a deficient number, since it is larger than the sum of its proper divisors (1).

566535397 is an equidigital number, since it uses as much as digits as its factorization.

566535397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2551500, while the sum is 49.

The square root of 566535397 is about 23802.0040542808. The cubic root of 566535397 is about 827.4511233351.

The spelling of 566535397 in words is "five hundred sixty-six million, five hundred thirty-five thousand, three hundred ninety-seven".