5271224 has 64 divisors (see below), whose sum is σ = 12312000. Its totient is φ = 2107392.

The previous prime is 5271223. The next prime is 5271281. The reversal of 5271224 is 4221725.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5271224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5271223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46592 + ... + 46704.

It is an arithmetic number, because the mean of its divisors is an integer number (192375).

Almost surely, 2^5271224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5271224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6156000).

5271224 is an abundant number, since it is smaller than the sum of its proper divisors (7040776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5271224 is a wasteful number, since it uses less digits than its factorization.

5271224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 139 counting only the distinct ones).

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

The square root of 5271224 is about 2295.9146325593. The cubic root of 5271224 is about 174.0352242952.

Adding to 5271224 its reverse (4221725), we get a palindrome (9492949).

The spelling of 5271224 in words is "five million, two hundred seventy-one thousand, two hundred twenty-four".