503458216 has 8 divisors (see below), whose sum is σ = 943984170. Its totient is φ = 251729104.

The previous prime is 503458187. The next prime is 503458217. The reversal of 503458216 is 612854305.

It can be written as a sum of positive squares in only one way, i.e., 486202500 + 17255716 = 22050^2 + 4154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (503458217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31466131 + ... + 31466146.

Almost surely, 2^503458216 is an apocalyptic number.

It is an amenable number.

503458216 is a deficient number, since it is larger than the sum of its proper divisors (440525954).

503458216 is a wasteful number, since it uses less digits than its factorization.

503458216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62932283 (or 62932279 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 503458216 is about 22437.8745874024. The cubic root of 503458216 is about 795.5261819946.

The spelling of 503458216 in words is "five hundred three million, four hundred fifty-eight thousand, two hundred sixteen".