499955069 has 2 divisors, whose sum is σ = 499955070. Its totient is φ = 499955068.

The previous prime is 499955033. The next prime is 499955077. The reversal of 499955069 is 960559994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274564900 + 225390169 = 16570^2 + 15013^2 .

It is a cyclic number.

It is not a de Polignac number, because 499955069 - 2²⁰ = 498906493 is a prime.

It is a super-2 number, since 2×499955069² = 499910142037589522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499955089) 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, 249977534 + 249977535.

It is an arithmetic number, because the mean of its divisors is an integer number (249977535).

Almost surely, 2^499955069 is an apocalyptic number.

It is an amenable number.

499955069 is a deficient number, since it is larger than the sum of its proper divisors (1).

499955069 is an equidigital number, since it uses as much as digits as its factorization.

499955069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3936600, while the sum is 56.

The square root of 499955069 is about 22359.6750647231. The cubic root of 499955069 is about 793.6767507664.

The spelling of 499955069 in words is "four hundred ninety-nine million, nine hundred fifty-five thousand, sixty-nine".