11001055 has 24 divisors (see below), whose sum is σ = 14651712. Its totient is φ = 7922304.

The previous prime is 11001049. The next prime is 11001073. The reversal of 11001055 is 55010011.

11001055 = T₅₄₉ + T₅₅₀ + ... + T₆₁₃.

It is a de Polignac number, because none of the positive numbers 2^k-11001055 is a prime.

It is a super-2 number, since 2×11001055² = 242046422226050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39577 + ... + 39853.

It is an arithmetic number, because the mean of its divisors is an integer number (610488).

Almost surely, 2^11001055 is an apocalyptic number.

11001055 is a deficient number, since it is larger than the sum of its proper divisors (3650657).

11001055 is a wasteful number, since it uses less digits than its factorization.

11001055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 11001055 is about 3316.7838337763. The cubic root of 11001055 is about 222.4051188266.

Adding to 11001055 its reverse (55010011), we get a palindrome (66011066).

The spelling of 11001055 in words is "eleven million, one thousand, fifty-five".