5217508231 has 4 divisors (see below), whose sum is σ = 5618855032. Its totient is φ = 4816161432.

The previous prime is 5217508229. The next prime is 5217508249. The reversal of 5217508231 is 1328057125.

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

It is a cyclic number.

It is not a de Polignac number, because 5217508231 - 2¹ = 5217508229 is a prime.

It is a super-2 number, since 2×5217508231² = 54444784281105498722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217508631) 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, 200673381 + ... + 200673406.

It is an arithmetic number, because the mean of its divisors is an integer number (1404713758).

Almost surely, 2^5217508231 is an apocalyptic number.

5217508231 is a deficient number, since it is larger than the sum of its proper divisors (401346801).

5217508231 is a wasteful number, since it uses less digits than its factorization.

5217508231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401346800.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 5217508231 is about 72232.3212350261. The cubic root of 5217508231 is about 1734.4204317882.

The spelling of 5217508231 in words is "five billion, two hundred seventeen million, five hundred eight thousand, two hundred thirty-one".