5318221 has 8 divisors (see below), whose sum is σ = 5603904. Its totient is φ = 5037120.

The previous prime is 5318213. The next prime is 5318237. The reversal of 5318221 is 1228135.

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 5318221 - 2³ = 5318213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5318192 and 5318201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5318251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (700488).

Almost surely, 2^5318221 is an apocalyptic number.

It is an amenable number.

5318221 is a deficient number, since it is larger than the sum of its proper divisors (285683).

5318221 is a wasteful number, since it uses less digits than its factorization.

5318221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its digits is 480, while the sum is 22.

The square root of 5318221 is about 2306.1268395299. The cubic root of 5318221 is about 174.5509138441.

The spelling of 5318221 in words is "five million, three hundred eighteen thousand, two hundred twenty-one".