11105557 has 8 divisors (see below), whose sum is σ = 11724800. Its totient is φ = 10489824.

The previous prime is 11105551. The next prime is 11105569. The reversal of 11105557 is 75550111.

11105557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11105557 - 2⁷ = 11105429 is a prime.

It is the 3333-rd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105551) by changing a digit.

It is a nontrivial repunit in base 3332.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8044 + ... + 9322.

It is an arithmetic number, because the mean of its divisors is an integer number (1465600).

Almost surely, 2^11105557 is an apocalyptic number.

It is an amenable number.

11105557 is a deficient number, since it is larger than the sum of its proper divisors (619243).

11105557 is a wasteful number, since it uses less digits than its factorization.

11105557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 11105557 is about 3332.5001125281. The cubic root of 11105557 is about 223.1071294472.

Adding to 11105557 its reverse (75550111), we get a palindrome (86655668).

The spelling of 11105557 in words is "eleven million, one hundred five thousand, five hundred fifty-seven".