55057211109 has 96 divisors (see below), whose sum is σ = 89998646400. Its totient is φ = 33219164160.

The previous prime is 55057211093. The next prime is 55057211149. The reversal of 55057211109 is 90111275055.

It is not a de Polignac number, because 55057211109 - 2⁴ = 55057211093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55057211149) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105675769 + ... + 105676289.

It is an arithmetic number, because the mean of its divisors is an integer number (937485900).

Almost surely, 2^55057211109 is an apocalyptic number.

It is an amenable number.

55057211109 is a deficient number, since it is larger than the sum of its proper divisors (34941435291).

55057211109 is a wasteful number, since it uses less digits than its factorization.

55057211109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 36.

The spelling of 55057211109 in words is "fifty-five billion, fifty-seven million, two hundred eleven thousand, one hundred nine".