55508171 has 2 divisors, whose sum is σ = 55508172. Its totient is φ = 55508170.

The previous prime is 55508161. The next prime is 55508209. The reversal of 55508171 is 17180555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55508171 - 2⁶ = 55508107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55508161) 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 as a sum of consecutive naturals, namely, 27754085 + 27754086.

It is an arithmetic number, because the mean of its divisors is an integer number (27754086).

Almost surely, 2^55508171 is an apocalyptic number.

55508171 is a deficient number, since it is larger than the sum of its proper divisors (1).

55508171 is an equidigital number, since it uses as much as digits as its factorization.

55508171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 32.

The square root of 55508171 is about 7450.3805943052. The cubic root of 55508171 is about 381.4628997759.

The spelling of 55508171 in words is "fifty-five million, five hundred eight thousand, one hundred seventy-one".