5220450439 has 2 divisors, whose sum is σ = 5220450440. Its totient is φ = 5220450438.

The previous prime is 5220450421. The next prime is 5220450463. The reversal of 5220450439 is 9340540225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5220450439 - 2²³ = 5212061831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5220450479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610225219 + 2610225220.

It is an arithmetic number, because the mean of its divisors is an integer number (2610225220).

Almost surely, 2^5220450439 is an apocalyptic number.

5220450439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220450439 is an equidigital number, since it uses as much as digits as its factorization.

5220450439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 5220450439 is about 72252.6846490841. The cubic root of 5220450439 is about 1734.7463898591.

The spelling of 5220450439 in words is "five billion, two hundred twenty million, four hundred fifty thousand, four hundred thirty-nine".