5216221837 has 4 divisors (see below), whose sum is σ = 5216391040. Its totient is φ = 5216052636.

The previous prime is 5216221817. The next prime is 5216221847. The reversal of 5216221837 is 7381226125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5216221837 - 2¹⁹ = 5215697549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5216221796 and 5216221805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216221807) 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, 23787 + ... + 104872.

It is an arithmetic number, because the mean of its divisors is an integer number (1304097760).

Almost surely, 2^5216221837 is an apocalyptic number.

It is an amenable number.

5216221837 is a deficient number, since it is larger than the sum of its proper divisors (169203).

5216221837 is a wasteful number, since it uses less digits than its factorization.

5216221837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169202.

The product of its digits is 40320, while the sum is 37.

The square root of 5216221837 is about 72223.4161266275. The cubic root of 5216221837 is about 1734.2778776973.

The spelling of 5216221837 in words is "five billion, two hundred sixteen million, two hundred twenty-one thousand, eight hundred thirty-seven".