5240221 has 4 divisors (see below), whose sum is σ = 5988832. Its totient is φ = 4491612.

The previous prime is 5240201. The next prime is 5240227. The reversal of 5240221 is 1220425.

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 a cyclic number.

It is not a de Polignac number, because 5240221 - 2⁷ = 5240093 is a prime.

It is a super-2 number, since 2×5240221² = 54919832257682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5240195 and 5240204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5240227) 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, 374295 + ... + 374308.

It is an arithmetic number, because the mean of its divisors is an integer number (1497208).

Almost surely, 2^5240221 is an apocalyptic number.

It is an amenable number.

5240221 is a deficient number, since it is larger than the sum of its proper divisors (748611).

5240221 is an equidigital number, since it uses as much as digits as its factorization.

5240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748610.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 5240221 is about 2289.1529000921. The cubic root of 5240221 is about 173.6933538579.

Adding to 5240221 its reverse (1220425), we get a palindrome (6460646).

The spelling of 5240221 in words is "five million, two hundred forty thousand, two hundred twenty-one".