505056165 has 8 divisors (see below), whose sum is σ = 808089888. Its totient is φ = 269363280.

The previous prime is 505056161. The next prime is 505056169. The reversal of 505056165 is 561650505.

505056165 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (505056161) and next prime (505056169).

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

It is not a de Polignac number, because 505056165 - 2² = 505056161 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505056161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16835191 + ... + 16835220.

It is an arithmetic number, because the mean of its divisors is an integer number (101011236).

Almost surely, 2^505056165 is an apocalyptic number.

It is an amenable number.

505056165 is a deficient number, since it is larger than the sum of its proper divisors (303033723).

505056165 is a wasteful number, since it uses less digits than its factorization.

505056165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33670419.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 505056165 is about 22473.4546743486. The cubic root of 505056165 is about 796.3669453891.

The spelling of 505056165 in words is "five hundred five million, fifty-six thousand, one hundred sixty-five".