500000165 has 24 divisors (see below), whose sum is σ = 722037240. Its totient is φ = 331029888.

The previous prime is 500000117. The next prime is 500000183. The reversal of 500000165 is 561000005.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 499567201 = 658^2 + 22351^2 .

It is not a de Polignac number, because 500000165 - 2⁶ = 500000101 is a prime.

500000165 is a modest number, since divided by 165 gives 5 as remainder.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 28082 + ... + 42291.

It is an arithmetic number, because the mean of its divisors is an integer number (30084885).

Almost surely, 2^500000165 is an apocalyptic number.

It is an amenable number.

500000165 is a deficient number, since it is larger than the sum of its proper divisors (222037075).

500000165 is a wasteful number, since it uses less digits than its factorization.

500000165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70421 (or 70414 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 500000165 is about 22360.6834645098. The cubic root of 500000165 is about 793.7006132911.

The spelling of 500000165 in words is "five hundred million, one hundred sixty-five", and thus it is an aban number.