506216899 has 4 divisors (see below), whose sum is σ = 506468664. Its totient is φ = 505965136.

The previous prime is 506216861. The next prime is 506216923. The reversal of 506216899 is 998612605.

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 506216899 - 2⁷ = 506216771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506216839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122842 + ... + 126895.

It is an arithmetic number, because the mean of its divisors is an integer number (126617166).

Almost surely, 2^506216899 is an apocalyptic number.

506216899 is a deficient number, since it is larger than the sum of its proper divisors (251765).

506216899 is a wasteful number, since it uses less digits than its factorization.

506216899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251764.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 506216899 is about 22499.2644101979. The cubic root of 506216899 is about 796.9765561077.

The spelling of 506216899 in words is "five hundred six million, two hundred sixteen thousand, eight hundred ninety-nine".