5726221 has 4 divisors (see below), whose sum is σ = 5806944. Its totient is φ = 5645500.

The previous prime is 5726213. The next prime is 5726249. The reversal of 5726221 is 1226275.

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 5726221 - 2³ = 5726213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5726251) 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, 40255 + ... + 40396.

It is an arithmetic number, because the mean of its divisors is an integer number (1451736).

Almost surely, 2^5726221 is an apocalyptic number.

It is an amenable number.

5726221 is a deficient number, since it is larger than the sum of its proper divisors (80723).

5726221 is an equidigital number, since it uses as much as digits as its factorization.

5726221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80722.

The product of its digits is 1680, while the sum is 25.

The square root of 5726221 is about 2392.9523605789. The cubic root of 5726221 is about 178.9050920572.

The spelling of 5726221 in words is "five million, seven hundred twenty-six thousand, two hundred twenty-one".