500505945 has 8 divisors (see below), whose sum is σ = 800809536. Its totient is φ = 266936496.

The previous prime is 500505937. The next prime is 500505949. The reversal of 500505945 is 549505005.

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

It is not a de Polignac number, because 500505945 - 2³ = 500505937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500505949) 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, 16683517 + ... + 16683546.

It is an arithmetic number, because the mean of its divisors is an integer number (100101192).

Almost surely, 2^500505945 is an apocalyptic number.

It is an amenable number.

500505945 is a deficient number, since it is larger than the sum of its proper divisors (300303591).

500505945 is a wasteful number, since it uses less digits than its factorization.

500505945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367071.

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

The square root of 500505945 is about 22371.9901886265. The cubic root of 500505945 is about 793.9681482780.

The spelling of 500505945 in words is "five hundred million, five hundred five thousand, nine hundred forty-five".