550161172 has 12 divisors (see below), whose sum is σ = 1050307776. Its totient is φ = 250073240.

The previous prime is 550161167. The next prime is 550161181. The reversal of 550161172 is 271161055.

It is a self number, because there is not a number n which added to its sum of digits gives 550161172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6251788 + ... + 6251875.

It is an arithmetic number, because the mean of its divisors is an integer number (87525648).

Almost surely, 2^550161172 is an apocalyptic number.

550161172 is the 12538-th centered heptagonal number.

It is an amenable number.

550161172 is a deficient number, since it is larger than the sum of its proper divisors (500146604).

550161172 is a wasteful number, since it uses less digits than its factorization.

550161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503678 (or 12503676 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 550161172 is about 23455.5147460038. The cubic root of 550161172 is about 819.4012940862.

The spelling of 550161172 in words is "five hundred fifty million, one hundred sixty-one thousand, one hundred seventy-two".