5218191 has 12 divisors (see below), whose sum is σ = 8222760. Its totient is φ = 3162480.

The previous prime is 5218189. The next prime is 5218207. The reversal of 5218191 is 1918125.

It is not a de Polignac number, because 5218191 - 2¹ = 5218189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26256 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (685230).

Almost surely, 2^5218191 is an apocalyptic number.

5218191 is a deficient number, since it is larger than the sum of its proper divisors (3004569).

5218191 is a wasteful number, since it uses less digits than its factorization.

5218191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52726 (or 52723 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 5218191 is about 2284.3360085592. The cubic root of 5218191 is about 173.4496084558.

The spelling of 5218191 in words is "five million, two hundred eighteen thousand, one hundred ninety-one".