499500005 has 4 divisors (see below), whose sum is σ = 599400012. Its totient is φ = 399600000.

The previous prime is 499499999. The next prime is 499500011. The reversal of 499500005 is 500005994.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (499499999) and next prime (499500011).

It can be written as a sum of positive squares in 2 ways, for example, as 283821409 + 215678596 = 16847^2 + 14686^2 .

It is not a de Polignac number, because 499500005 - 2²⁴ = 482722789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49949996 + ... + 49950005.

It is an arithmetic number, because the mean of its divisors is an integer number (149850003).

Almost surely, 2^499500005 is an apocalyptic number.

It is an amenable number.

499500005 is a deficient number, since it is larger than the sum of its proper divisors (99900007).

499500005 is an equidigital number, since it uses as much as digits as its factorization.

499500005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99900006.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 499500005 is about 22349.4967504864. The cubic root of 499500005 is about 793.4358735516.

Adding to 499500005 its reverse (500005994), we get a palindrome (999505999).

The spelling of 499500005 in words is "four hundred ninety-nine million, five hundred thousand, five".