5712221 has 8 divisors (see below), whose sum is σ = 6083064. Its totient is φ = 5345280.

The previous prime is 5712209. The next prime is 5712229. The reversal of 5712221 is 1222175.

It can be written as a sum of positive squares in 4 ways, for example, as 4900 + 5707321 = 70^2 + 2389^2 .

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 5712221 - 2¹⁰ = 5711197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5712193 and 5712202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5712229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (760383).

Almost surely, 2^5712221 is an apocalyptic number.

It is an amenable number.

5712221 is a deficient number, since it is larger than the sum of its proper divisors (370843).

5712221 is a wasteful number, since it uses less digits than its factorization.

5712221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

The product of its digits is 280, while the sum is 20.

The square root of 5712221 is about 2390.0253136735. The cubic root of 5712221 is about 178.7591717790.

Adding to 5712221 its reverse (1222175), we get a palindrome (6934396).

The spelling of 5712221 in words is "five million, seven hundred twelve thousand, two hundred twenty-one".