500550065 has 4 divisors (see below), whose sum is σ = 600660084. Its totient is φ = 400440048.

The previous prime is 500550059. The next prime is 500550067. The reversal of 500550065 is 560055005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175721536 + 324828529 = 13256^2 + 18023^2 .

It is a cyclic number.

It is not a de Polignac number, because 500550065 - 2⁸ = 500549809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500550067) 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 3 ways as a sum of consecutive naturals, for example, 50055002 + ... + 50055011.

It is an arithmetic number, because the mean of its divisors is an integer number (150165021).

Almost surely, 2^500550065 is an apocalyptic number.

It is an amenable number.

500550065 is a deficient number, since it is larger than the sum of its proper divisors (100110019).

500550065 is a wasteful number, since it uses less digits than its factorization.

500550065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100110018.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 500550065 is about 22372.9762213256. The cubic root of 500550065 is about 793.9914772353.

The spelling of 500550065 in words is "five hundred million, five hundred fifty thousand, sixty-five".