499990505 has 16 divisors (see below), whose sum is σ = 695097984. Its totient is φ = 338152320.

The previous prime is 499990487. The next prime is 499990523. The reversal of 499990505 is 505099994.

It is an interprime number because it is at equal distance from previous prime (499990487) and next prime (499990523).

It is not a de Polignac number, because 499990505 - 2¹⁰ = 499989481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95291 + ... + 100400.

It is an arithmetic number, because the mean of its divisors is an integer number (43443624).

Almost surely, 2^499990505 is an apocalyptic number.

It is an amenable number.

499990505 is a deficient number, since it is larger than the sum of its proper divisors (195107479).

499990505 is a wasteful number, since it uses less digits than its factorization.

499990505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195776.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 499990505 is about 22360.4674593355. The cubic root of 499990505 is about 793.6955018280.

The spelling of 499990505 in words is "four hundred ninety-nine million, nine hundred ninety thousand, five hundred five".