11053561 has 2 divisors, whose sum is σ = 11053562. Its totient is φ = 11053560.

The previous prime is 11053543. The next prime is 11053583. The reversal of 11053561 is 16535011.

It is an a-pointer prime, because the next prime (11053583) can be obtained adding 11053561 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8231161 + 2822400 = 2869^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11053561 - 2⁵ = 11053529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11053531) 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 as a sum of consecutive naturals, namely, 5526780 + 5526781.

It is an arithmetic number, because the mean of its divisors is an integer number (5526781).

Almost surely, 2^11053561 is an apocalyptic number.

It is an amenable number.

11053561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11053561 is an equidigital number, since it uses as much as digits as its factorization.

11053561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 11053561 is about 3324.6896095726. The cubic root of 11053561 is about 222.7583902152.

Adding to 11053561 its reverse (16535011), we get a palindrome (27588572).

The spelling of 11053561 in words is "eleven million, fifty-three thousand, five hundred sixty-one".