665052029 has 2 divisors, whose sum is σ = 665052030. Its totient is φ = 665052028.

The previous prime is 665052001. The next prime is 665052043. The reversal of 665052029 is 920250566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622502500 + 42549529 = 24950^2 + 6523^2 .

It is a cyclic number.

It is not a de Polignac number, because 665052029 - 2¹⁶ = 664986493 is a prime.

It is equal to p_34534916 and since 665052029 and 34534916 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 665052029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665052049) 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, 332526014 + 332526015.

It is an arithmetic number, because the mean of its divisors is an integer number (332526015).

Almost surely, 2^665052029 is an apocalyptic number.

It is an amenable number.

665052029 is a deficient number, since it is larger than the sum of its proper divisors (1).

665052029 is an equidigital number, since it uses as much as digits as its factorization.

665052029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 665052029 is about 25788.6026957647. The cubic root of 665052029 is about 872.8746366393.

The spelling of 665052029 in words is "six hundred sixty-five million, fifty-two thousand, twenty-nine".