11053621 has 4 divisors (see below), whose sum is σ = 11703852. Its totient is φ = 10403392.

The previous prime is 11053619. The next prime is 11053631. The reversal of 11053621 is 12635011.

11053621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6275025 + 4778596 = 2505^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 11053621 - 2¹ = 11053619 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 (11053631) 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 3 ways as a sum of consecutive naturals, for example, 325090 + ... + 325123.

It is an arithmetic number, because the mean of its divisors is an integer number (2925963).

Almost surely, 2^11053621 is an apocalyptic number.

It is an amenable number.

11053621 is a deficient number, since it is larger than the sum of its proper divisors (650231).

11053621 is an equidigital number, since it uses as much as digits as its factorization.

11053621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650230.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 11053621 is about 3324.6986329591. The cubic root of 11053621 is about 222.7587932672.

Adding to 11053621 its reverse (12635011), we get a palindrome (23688632).

The spelling of 11053621 in words is "eleven million, fifty-three thousand, six hundred twenty-one".