501217216 has 28 divisors (see below), whose sum is σ = 995918760. Its totient is φ = 250277120.

The previous prime is 501217201. The next prime is 501217217. The reversal of 501217216 is 612712105.

It is a super-2 number, since 2×501217216² = 502437395229581312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501217217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47775 + ... + 57313.

Almost surely, 2^501217216 is an apocalyptic number.

It is an amenable number.

501217216 is a deficient number, since it is larger than the sum of its proper divisors (494701544).

501217216 is an equidigital number, since it uses as much as digits as its factorization.

501217216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372 (or 10362 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 501217216 is about 22387.8810073665. The cubic root of 501217216 is about 794.3440740279.

The spelling of 501217216 in words is "five hundred one million, two hundred seventeen thousand, two hundred sixteen".