5220440231 has 2 divisors, whose sum is σ = 5220440232. Its totient is φ = 5220440230.

The previous prime is 5220440213. The next prime is 5220440237. The reversal of 5220440231 is 1320440225.

It is a happy number.

Together with previous prime (5220440213) 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 5220440231 - 2¹⁰ = 5220439207 is a prime.

It is a super-2 number, since 2×5220440231² = 54505992410886666722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5220440197 and 5220440206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5220440237) 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 as a sum of consecutive naturals, namely, 2610220115 + 2610220116.

It is an arithmetic number, because the mean of its divisors is an integer number (2610220116).

Almost surely, 2^5220440231 is an apocalyptic number.

5220440231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220440231 is an equidigital number, since it uses as much as digits as its factorization.

5220440231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 5220440231 is about 72252.6140080759. The cubic root of 5220440231 is about 1734.7452591583.

Adding to 5220440231 its reverse (1320440225), we get a palindrome (6540880456).

The spelling of 5220440231 in words is "five billion, two hundred twenty million, four hundred forty thousand, two hundred thirty-one".