550161138 has 16 divisors (see below), whose sum is σ = 1100553696. Its totient is φ = 183348480.

The previous prime is 550161137. The next prime is 550161149. The reversal of 550161138 is 831161055.

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, 45693 + ... + 56463.

It is an arithmetic number, because the mean of its divisors is an integer number (68784606).

Almost surely, 2^550161138 is an apocalyptic number.

550161138 is an abundant number, since it is smaller than the sum of its proper divisors (550392558).

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

550161138 is a wasteful number, since it uses less digits than its factorization.

550161138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19289.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 550161138 is about 23455.5140212275. The cubic root of 550161138 is about 819.4012772065.

The spelling of 550161138 in words is "five hundred fifty million, one hundred sixty-one thousand, one hundred thirty-eight".