11105553 has 8 divisors (see below), whose sum is σ = 14855968. Its totient is φ = 7379424.

The previous prime is 11105551. The next prime is 11105569. The reversal of 11105553 is 35550111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11105553 - 2¹ = 11105551 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (11105551) 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 7 ways as a sum of consecutive naturals, for example, 4975 + ... + 6852.

It is an arithmetic number, because the mean of its divisors is an integer number (1856996).

Almost surely, 2^11105553 is an apocalyptic number.

It is an amenable number.

11105553 is a deficient number, since it is larger than the sum of its proper divisors (3750415).

11105553 is a wasteful number, since it uses less digits than its factorization.

11105553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12143.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 11105553 is about 3332.4995123781. The cubic root of 11105553 is about 223.1071026610.

Adding to 11105553 its reverse (35550111), we get a palindrome (46655664).

The spelling of 11105553 in words is "eleven million, one hundred five thousand, five hundred fifty-three".