5164221 has 4 divisors (see below), whose sum is σ = 6885632. Its totient is φ = 3442812.

The previous prime is 5164217. The next prime is 5164241. The reversal of 5164221 is 1224615.

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 not a de Polignac number, because 5164221 - 2² = 5164217 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5164241) 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, 860701 + ... + 860706.

It is an arithmetic number, because the mean of its divisors is an integer number (1721408).

Almost surely, 2^5164221 is an apocalyptic number.

It is an amenable number.

5164221 is a deficient number, since it is larger than the sum of its proper divisors (1721411).

5164221 is a wasteful number, since it uses less digits than its factorization.

5164221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721410.

The product of its digits is 480, while the sum is 21.

The square root of 5164221 is about 2272.4922442112. The cubic root of 5164221 is about 172.8495579201.

Adding to 5164221 its reverse (1224615), we get a palindrome (6388836).

The spelling of 5164221 in words is "five million, one hundred sixty-four thousand, two hundred twenty-one".