5247221 has 16 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 4283520.

The previous prime is 5247217. The next prime is 5247223. The reversal of 5247221 is 1227425.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5247221 - 2² = 5247217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5247223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13295 + ... + 13683.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^5247221 is an apocalyptic number.

It is an amenable number.

5247221 is a deficient number, since it is larger than the sum of its proper divisors (1042699).

5247221 is a wasteful number, since it uses less digits than its factorization.

5247221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 1120, while the sum is 23.

The square root of 5247221 is about 2290.6813396891. The cubic root of 5247221 is about 173.7706605523.

The spelling of 5247221 in words is "five million, two hundred forty-seven thousand, two hundred twenty-one".