55500561117 has 6 divisors (see below), whose sum is σ = 80167477182. Its totient is φ = 37000374072.

The previous prime is 55500561091. The next prime is 55500561133. The reversal of 55500561117 is 71116500555.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55464489081 + 36072036 = 235509^2 + 6006^2 .

It is not a de Polignac number, because 55500561117 - 2⁸ = 55500560861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500561817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083364498 + ... + 3083364515.

It is an arithmetic number, because the mean of its divisors is an integer number (13361246197).

Almost surely, 2^55500561117 is an apocalyptic number.

It is an amenable number.

55500561117 is a deficient number, since it is larger than the sum of its proper divisors (24666916065).

55500561117 is a wasteful number, since it uses less digits than its factorization.

55500561117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166729019 (or 6166729016 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The spelling of 55500561117 in words is "fifty-five billion, five hundred million, five hundred sixty-one thousand, one hundred seventeen".