11113555 has 8 divisors (see below), whose sum is σ = 13461552. Its totient is φ = 8807328.

The previous prime is 11113549. The next prime is 11113561. The reversal of 11113555 is 55531111.

It is an interprime number because it is at equal distance from previous prime (11113549) and next prime (11113561).

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

It is a cyclic number.

It is not a de Polignac number, because 11113555 - 2³ = 11113547 is a prime.

It is a super-2 number, since 2×11113555² = 247022209476050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is an unprimeable number.

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, 9852 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (1682694).

Almost surely, 2^11113555 is an apocalyptic number.

11113555 is a deficient number, since it is larger than the sum of its proper divisors (2347997).

11113555 is a wasteful number, since it uses less digits than its factorization.

11113555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20885.

The product of its digits is 375, while the sum is 22.

The square root of 11113555 is about 3333.6998965114. The cubic root of 11113555 is about 223.1606756922.

Adding to 11113555 its reverse (55531111), we get a palindrome (66644666).

The spelling of 11113555 in words is "eleven million, one hundred thirteen thousand, five hundred fifty-five".