11055550 has 24 divisors (see below), whose sum is σ = 22433832. Its totient is φ = 4020000.

The previous prime is 11055533. The next prime is 11055553. The reversal of 11055550 is 5555011.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9501 + ... + 10600.

It is an arithmetic number, because the mean of its divisors is an integer number (934743).

Almost surely, 2^11055550 is an apocalyptic number.

11055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11055550 is an abundant number, since it is smaller than the sum of its proper divisors (11378282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11055550 is a wasteful number, since it uses less digits than its factorization.

11055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20124 (or 20119 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 11055550 is about 3324.9887217854. The cubic root of 11055550 is about 222.7717506115.

The spelling of 11055550 in words is "eleven million, fifty-five thousand, five hundred fifty".