11200055 has 12 divisors (see below), whose sum is σ = 13671000. Its totient is φ = 8808624.

The previous prime is 11200039. The next prime is 11200087. The reversal of 11200055 is 55000211.

It is not a de Polignac number, because 11200055 - 2⁴ = 11200039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22196 + ... + 22694.

It is an arithmetic number, because the mean of its divisors is an integer number (1139250).

Almost surely, 2^11200055 is an apocalyptic number.

11200055 is a deficient number, since it is larger than the sum of its proper divisors (2470945).

11200055 is an frugal number, since it uses more digits than its factorization.

11200055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 11200055 is about 3346.6483233229. The cubic root of 11200055 is about 223.7381546531.

Adding to 11200055 its reverse (55000211), we get a palindrome (66200266).

The spelling of 11200055 in words is "eleven million, two hundred thousand, fifty-five".