550172 has 24 divisors (see below), whose sum is σ = 1125600. Its totient is φ = 235200.

The previous prime is 550169. The next prime is 550177. The reversal of 550172 is 271055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172 + ... + 1572.

It is an arithmetic number, because the mean of its divisors is an integer number (46900).

2⁵⁵⁰¹⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562800).

550172 is an abundant number, since it is smaller than the sum of its proper divisors (575428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550172 is a wasteful number, since it uses less digits than its factorization.

550172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 550172 is about 741.7358020212. The cubic root of 550172 is about 81.9406669735.

The spelling of 550172 in words is "five hundred fifty thousand, one hundred seventy-two".