550552171 has 4 divisors (see below), whose sum is σ = 592902352. Its totient is φ = 508201992.

The previous prime is 550552147. The next prime is 550552207. The reversal of 550552171 is 171255055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550552171 - 2⁷ = 550552043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550555171) 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, 21175071 + ... + 21175096.

It is an arithmetic number, because the mean of its divisors is an integer number (148225588).

Almost surely, 2^550552171 is an apocalyptic number.

550552171 is a deficient number, since it is larger than the sum of its proper divisors (42350181).

550552171 is a wasteful number, since it uses less digits than its factorization.

550552171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42350180.

The product of its (nonzero) digits is 8750, while the sum is 31.

The square root of 550552171 is about 23463.8481711760. The cubic root of 550552171 is about 819.5953640144.

The spelling of 550552171 in words is "five hundred fifty million, five hundred fifty-two thousand, one hundred seventy-one".