5218850387 has 2 divisors, whose sum is σ = 5218850388. Its totient is φ = 5218850386.

The previous prime is 5218850347. The next prime is 5218850389. The reversal of 5218850387 is 7830588125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5218850387 - 2²⁰ = 5217801811 is a prime.

Together with 5218850389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5218850389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609425193 + 2609425194.

It is an arithmetic number, because the mean of its divisors is an integer number (2609425194).

Almost surely, 2^5218850387 is an apocalyptic number.

5218850387 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218850387 is an equidigital number, since it uses as much as digits as its factorization.

5218850387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 5218850387 is about 72241.6111877358. The cubic root of 5218850387 is about 1734.5691402717.

The spelling of 5218850387 in words is "five billion, two hundred eighteen million, eight hundred fifty thousand, three hundred eighty-seven".