5221591867 has 4 divisors (see below), whose sum is σ = 5343024280. Its totient is φ = 5100159456.

The previous prime is 5221591861. The next prime is 5221591873. The reversal of 5221591867 is 7681951225.

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

It is an interprime number because it is at equal distance from previous prime (5221591861) and next prime (5221591873).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5221591867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5221591861) 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, 60716142 + ... + 60716227.

It is an arithmetic number, because the mean of its divisors is an integer number (1335756070).

Almost surely, 2^5221591867 is an apocalyptic number.

5221591867 is a deficient number, since it is larger than the sum of its proper divisors (121432413).

5221591867 is a wasteful number, since it uses less digits than its factorization.

5221591867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121432412.

The product of its digits is 302400, while the sum is 46.

The square root of 5221591867 is about 72260.5830795739. The cubic root of 5221591867 is about 1734.8728121433.

The spelling of 5221591867 in words is "five billion, two hundred twenty-one million, five hundred ninety-one thousand, eight hundred sixty-seven".