505216337 has 8 divisors (see below), whose sum is σ = 522992640. Its totient is φ = 487463760.

The previous prime is 505216277. The next prime is 505216343. The reversal of 505216337 is 733612505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505216337 - 2⁶ = 505216273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505216037) 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 in 7 ways as a sum of consecutive naturals, for example, 44912 + ... + 55022.

It is an arithmetic number, because the mean of its divisors is an integer number (65374080).

Almost surely, 2^505216337 is an apocalyptic number.

It is an amenable number.

505216337 is a deficient number, since it is larger than the sum of its proper divisors (17776303).

505216337 is a wasteful number, since it uses less digits than its factorization.

505216337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11863.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 505216337 is about 22477.0179739217. The cubic root of 505216337 is about 796.4511223007.

The spelling of 505216337 in words is "five hundred five million, two hundred sixteen thousand, three hundred thirty-seven".