5211431 has 2 divisors, whose sum is σ = 5211432. Its totient is φ = 5211430.

The previous prime is 5211421. The next prime is 5211443. The reversal of 5211431 is 1341125.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5211431 is a prime.

It is a super-2 number, since 2×5211431² = 54318026135522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5211421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605715 + 2605716.

It is an arithmetic number, because the mean of its divisors is an integer number (2605716).

Almost surely, 2^5211431 is an apocalyptic number.

5211431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5211431 is an equidigital number, since it uses as much as digits as its factorization.

5211431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 17.

The square root of 5211431 is about 2282.8558868225. The cubic root of 5211431 is about 173.3746766108.

Adding to 5211431 its reverse (1341125), we get a palindrome (6552556).

The spelling of 5211431 in words is "five million, two hundred eleven thousand, four hundred thirty-one".