5216557839 has 16 divisors (see below), whose sum is σ = 7024154112. Its totient is φ = 3443368448.

The previous prime is 5216557823. The next prime is 5216557873. The reversal of 5216557839 is 9387556125.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5216557839 - 2⁴ = 5216557823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5216557791 and 5216557800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216057839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880762 + ... + 886664.

It is an arithmetic number, because the mean of its divisors is an integer number (439009632).

Almost surely, 2^5216557839 is an apocalyptic number.

5216557839 is a deficient number, since it is larger than the sum of its proper divisors (1807596273).

5216557839 is a wasteful number, since it uses less digits than its factorization.

5216557839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766.

The product of its digits is 2268000, while the sum is 51.

The square root of 5216557839 is about 72225.7422184085. The cubic root of 5216557839 is about 1734.3151146312.

The spelling of 5216557839 in words is "five billion, two hundred sixteen million, five hundred fifty-seven thousand, eight hundred thirty-nine".