55500766171 has 4 divisors (see below), whose sum is σ = 55501310392. Its totient is φ = 55500221952.

The previous prime is 55500766157. The next prime is 55500766187. The reversal of 55500766171 is 17166700555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55500766171 - 2⁷ = 55500766043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55500766141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68205 + ... + 340078.

It is an arithmetic number, because the mean of its divisors is an integer number (13875327598).

Almost surely, 2^55500766171 is an apocalyptic number.

55500766171 is a deficient number, since it is larger than the sum of its proper divisors (544221).

55500766171 is a wasteful number, since it uses less digits than its factorization.

55500766171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544220.

The product of its (nonzero) digits is 220500, while the sum is 43.

The spelling of 55500766171 in words is "fifty-five billion, five hundred million, seven hundred sixty-six thousand, one hundred seventy-one".