499550019 has 4 divisors (see below), whose sum is σ = 666066696. Its totient is φ = 333033344.

The previous prime is 499550017. The next prime is 499550063. The reversal of 499550019 is 910055994.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 499550019 - 2¹ = 499550017 is a prime.

It is a super-2 number, since 2×499550019² = 499100442965800722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499550011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83258334 + ... + 83258339.

It is an arithmetic number, because the mean of its divisors is an integer number (166516674).

Almost surely, 2^499550019 is an apocalyptic number.

499550019 is a deficient number, since it is larger than the sum of its proper divisors (166516677).

499550019 is a wasteful number, since it uses less digits than its factorization.

499550019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166516676.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 499550019 is about 22350.6156291052. The cubic root of 499550019 is about 793.4623544171.

It can be divided in two parts, 49955001 and 9, that added together give a triangular number (49955010 = T₉₉₉₅).

The spelling of 499550019 in words is "four hundred ninety-nine million, five hundred fifty thousand, nineteen".