5218390239 has 16 divisors (see below), whose sum is σ = 7429969920. Its totient is φ = 3250608480.

The previous prime is 5218390237. The next prime is 5218390253. The reversal of 5218390239 is 9320938125.

5218390239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5218390239 - 2¹ = 5218390237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5218390239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218390237) 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 in 15 ways as a sum of consecutive naturals, for example, 964747 + ... + 970140.

It is an arithmetic number, because the mean of its divisors is an integer number (464373120).

Almost surely, 2^5218390239 is an apocalyptic number.

5218390239 is a deficient number, since it is larger than the sum of its proper divisors (2211579681).

5218390239 is a wasteful number, since it uses less digits than its factorization.

5218390239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934950.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 5218390239 is about 72238.4263325275. The cubic root of 5218390239 is about 1734.5181595690.

The spelling of 5218390239 in words is "five billion, two hundred eighteen million, three hundred ninety thousand, two hundred thirty-nine".