5220555397 has 2 divisors, whose sum is σ = 5220555398. Its totient is φ = 5220555396.

The previous prime is 5220555343. The next prime is 5220555401. The reversal of 5220555397 is 7935550225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5202159876 + 18395521 = 72126^2 + 4289^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220555397 - 2⁷ = 5220555269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5220555097) 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, 2610277698 + 2610277699.

It is an arithmetic number, because the mean of its divisors is an integer number (2610277699).

Almost surely, 2^5220555397 is an apocalyptic number.

It is an amenable number.

5220555397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220555397 is an equidigital number, since it uses as much as digits as its factorization.

5220555397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472500, while the sum is 43.

The square root of 5220555397 is about 72253.4109713860. The cubic root of 5220555397 is about 1734.7580155667.

The spelling of 5220555397 in words is "five billion, two hundred twenty million, five hundred fifty-five thousand, three hundred ninety-seven".