55112211126 has 24 divisors (see below), whose sum is σ = 136468332624. Its totient is φ = 15746346000.

The previous prime is 55112211113. The next prime is 55112211151. The reversal of 55112211126 is 62111221155.

It is a happy number.

55112211126 is a `hidden beast` number, since 5 + 511 + 2 + 21 + 1 + 126 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 55112211126.

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, 218699125 + ... + 218699376.

It is an arithmetic number, because the mean of its divisors is an integer number (5686180526).

Almost surely, 2^55112211126 is an apocalyptic number.

55112211126 is an abundant number, since it is smaller than the sum of its proper divisors (81356121498).

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

55112211126 is a wasteful number, since it uses less digits than its factorization.

55112211126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437398516 (or 437398513 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The spelling of 55112211126 in words is "fifty-five billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty-six".