499649519 has 2 divisors, whose sum is σ = 499649520. Its totient is φ = 499649518.

The previous prime is 499649509. The next prime is 499649543. The reversal of 499649519 is 915946994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499649519 - 2⁴ = 499649503 is a prime.

It is a super-2 number, since 2×499649519² = 499299283673862722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499649509) by changing a digit.

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 as a sum of consecutive naturals, namely, 249824759 + 249824760.

It is an arithmetic number, because the mean of its divisors is an integer number (249824760).

Almost surely, 2^499649519 is an apocalyptic number.

499649519 is a deficient number, since it is larger than the sum of its proper divisors (1).

499649519 is an equidigital number, since it uses as much as digits as its factorization.

499649519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 56.

The square root of 499649519 is about 22352.8414077495. The cubic root of 499649519 is about 793.5150313331.

The spelling of 499649519 in words is "four hundred ninety-nine million, six hundred forty-nine thousand, five hundred nineteen".