2053221 has 4 divisors (see below), whose sum is σ = 2737632. Its totient is φ = 1368812.

The previous prime is 2053213. The next prime is 2053237. The reversal of 2053221 is 1223502.

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 2053221 - 2³ = 2053213 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2053221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053201) 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, 342201 + ... + 342206.

It is an arithmetic number, because the mean of its divisors is an integer number (684408).

2^2053221 is an apocalyptic number.

It is an amenable number.

2053221 is a deficient number, since it is larger than the sum of its proper divisors (684411).

2053221 is an equidigital number, since it uses as much as digits as its factorization.

2053221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684410.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2053221 is about 1432.9064868302. The cubic root of 2053221 is about 127.0999069191.

Adding to 2053221 its reverse (1223502), we get a palindrome (3276723).

The spelling of 2053221 in words is "two million, fifty-three thousand, two hundred twenty-one".