503212305 has 16 divisors (see below), whose sum is σ = 831112704. Its totient is φ = 259722240.

The previous prime is 503212301. The next prime is 503212309.

503212305 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (503212301) and next prime (503212309).

It is not a de Polignac number, because 503212305 - 2² = 503212301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (503212301) 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 15 ways as a sum of consecutive naturals, for example, 540624 + ... + 541553.

It is an arithmetic number, because the mean of its divisors is an integer number (51944544).

Almost surely, 2^503212305 is an apocalyptic number.

It is an amenable number.

503212305 is a deficient number, since it is larger than the sum of its proper divisors (327900399).

503212305 is a wasteful number, since it uses less digits than its factorization.

503212305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082216.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 503212305 is about 22432.3940987136. The cubic root of 503212305 is about 795.3966376467.

The spelling of 503212305 in words is "five hundred three million, two hundred twelve thousand, three hundred five".