5220556213 has 2 divisors, whose sum is σ = 5220556214. Its totient is φ = 5220556212.

The previous prime is 5220556207. The next prime is 5220556241. The reversal of 5220556213 is 3126550225.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3028631089 + 2191925124 = 55033^2 + 46818^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220556213 - 2²¹ = 5218459061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5220556273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610278106 + 2610278107.

It is an arithmetic number, because the mean of its divisors is an integer number (2610278107).

Almost surely, 2^5220556213 is an apocalyptic number.

It is an amenable number.

5220556213 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220556213 is an equidigital number, since it uses as much as digits as its factorization.

5220556213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 5220556213 is about 72253.4166181780. The cubic root of 5220556213 is about 1734.7581059506.

The spelling of 5220556213 in words is "five billion, two hundred twenty million, five hundred fifty-six thousand, two hundred thirteen".