11057055550 has 12 divisors (see below), whose sum is σ = 20566123416. Its totient is φ = 4422822200.

The previous prime is 11057055523. The next prime is 11057055557. The reversal of 11057055550 is 5555075011.

It is a happy number.

11057055550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11057055557) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 110570506 + ... + 110570605.

It is an arithmetic number, because the mean of its divisors is an integer number (1713843618).

Almost surely, 2^11057055550 is an apocalyptic number.

11057055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11057055550 is a deficient number, since it is larger than the sum of its proper divisors (9509067866).

11057055550 is a wasteful number, since it uses less digits than its factorization.

11057055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221141123 (or 221141118 counting only the distinct ones).

The product of its (nonzero) digits is 21875, while the sum is 34.

The spelling of 11057055550 in words is "eleven billion, fifty-seven million, fifty-five thousand, five hundred fifty".