550166838 has 32 divisors (see below), whose sum is σ = 1217007456. Its totient is φ = 164706048.

The previous prime is 550166833. The next prime is 550166843. The reversal of 550166838 is 838661055.

It is an interprime number because it is at equal distance from previous prime (550166833) and next prime (550166843).

It is a self number, because there is not a number n which added to its sum of digits gives 550166838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550166833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92431 + ... + 98202.

It is an arithmetic number, because the mean of its divisors is an integer number (38031483).

Almost surely, 2^550166838 is an apocalyptic number.

550166838 is an abundant number, since it is smaller than the sum of its proper divisors (666840618).

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

550166838 is a wasteful number, since it uses less digits than its factorization.

550166838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190688.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 550166838 is about 23455.6355275230. The cubic root of 550166838 is about 819.4041070266.

The spelling of 550166838 in words is "five hundred fifty million, one hundred sixty-six thousand, eight hundred thirty-eight".