5216555639 has 4 divisors (see below), whose sum is σ = 5216717880. Its totient is φ = 5216393400.

The previous prime is 5216555627. The next prime is 5216555653. The reversal of 5216555639 is 9365556125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5216555639 - 2²⁸ = 4948120183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5216555593 and 5216555602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216155639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14837 + ... + 103214.

It is an arithmetic number, because the mean of its divisors is an integer number (1304179470).

Almost surely, 2^5216555639 is an apocalyptic number.

5216555639 is a deficient number, since it is larger than the sum of its proper divisors (162241).

5216555639 is a wasteful number, since it uses less digits than its factorization.

5216555639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162240.

The product of its digits is 1215000, while the sum is 47.

The square root of 5216555639 is about 72225.7269883800. The cubic root of 5216555639 is about 1734.3148708246.

The spelling of 5216555639 in words is "five billion, two hundred sixteen million, five hundred fifty-five thousand, six hundred thirty-nine".