550161139 has 8 divisors (see below), whose sum is σ = 601477632. Its totient is φ = 499061640.

The previous prime is 550161137. The next prime is 550161149. The reversal of 550161139 is 931161055.

550161139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550161139 - 2¹ = 550161137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550161139.

It is not an unprimeable number, because it can be changed into a prime (550161133) 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, 48919 + ... + 59104.

It is an arithmetic number, because the mean of its divisors is an integer number (75184704).

Almost surely, 2^550161139 is an apocalyptic number.

550161139 is a deficient number, since it is larger than the sum of its proper divisors (51316493).

550161139 is a wasteful number, since it uses less digits than its factorization.

550161139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108497.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 550161139 is about 23455.5140425445. The cubic root of 550161139 is about 819.4012777029.

The spelling of 550161139 in words is "five hundred fifty million, one hundred sixty-one thousand, one hundred thirty-nine".