5217431 has 2 divisors, whose sum is σ = 5217432. Its totient is φ = 5217430.

The previous prime is 5217413. The next prime is 5217439. The reversal of 5217431 is 1347125.

5217431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (5217413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5217431 - 2⁶ = 5217367 is a prime.

It is a super-2 number, since 2×5217431² = 54443172479522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5217397 and 5217406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5217439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608715 + 2608716.

It is an arithmetic number, because the mean of its divisors is an integer number (2608716).

Almost surely, 2^5217431 is an apocalyptic number.

5217431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5217431 is an equidigital number, since it uses as much as digits as its factorization.

5217431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 23.

The square root of 5217431 is about 2284.1696521931. The cubic root of 5217431 is about 173.4411873956.

The spelling of 5217431 in words is "five million, two hundred seventeen thousand, four hundred thirty-one".