5218591 has 8 divisors (see below), whose sum is σ = 6125600. Its totient is φ = 4351968.

The previous prime is 5218589. The next prime is 5218601. The reversal of 5218591 is 1958125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5218591 - 2¹ = 5218589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9816 + ... + 10333.

It is an arithmetic number, because the mean of its divisors is an integer number (765700).

Almost surely, 2^5218591 is an apocalyptic number.

5218591 is a deficient number, since it is larger than the sum of its proper divisors (907009).

5218591 is a wasteful number, since it uses less digits than its factorization.

5218591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20193.

The product of its digits is 3600, while the sum is 31.

The square root of 5218591 is about 2284.4235596754. The cubic root of 5218591 is about 173.4540402644.

The spelling of 5218591 in words is "five million, two hundred eighteen thousand, five hundred ninety-one".