11120553 has 12 divisors (see below), whose sum is σ = 16455348. Its totient is φ = 7232640.

The previous prime is 11120519. The next prime is 11120579. The reversal of 11120553 is 35502111.

11120553 = 327² + 328² + ... + 408².

11120553 is a `hidden beast` number, since 1 + 112 + 0 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 700569 + 10419984 = 837^2 + 3228^2 .

It is not a de Polignac number, because 11120553 - 2⁸ = 11120297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11120353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14700 + ... + 15437.

It is an arithmetic number, because the mean of its divisors is an integer number (1371279).

Almost surely, 2^11120553 is an apocalyptic number.

It is an amenable number.

11120553 is a deficient number, since it is larger than the sum of its proper divisors (5334795).

11120553 is a wasteful number, since it uses less digits than its factorization.

11120553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30184 (or 30181 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11120553 is about 3334.7493159157. The cubic root of 11120553 is about 223.2075059140.

Adding to 11120553 its reverse (35502111), we get a palindrome (46622664).

The spelling of 11120553 in words is "eleven million, one hundred twenty thousand, five hundred fifty-three".