550442890 has 8 divisors (see below), whose sum is σ = 990797220. Its totient is φ = 220177152.

The previous prime is 550442873. The next prime is 550442891. The reversal of 550442890 is 98244055.

It can be written as a sum of positive squares in 2 ways, for example, as 503149761 + 47293129 = 22431^2 + 6877^2 .

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

It is not an unprimeable number, because it can be changed into a prime (550442891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27522135 + ... + 27522154.

Almost surely, 2^550442890 is an apocalyptic number.

550442890 is a deficient number, since it is larger than the sum of its proper divisors (440354330).

550442890 is a wasteful number, since it uses less digits than its factorization.

550442890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55044296.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 550442890 is about 23461.5193455155. The cubic root of 550442890 is about 819.5411323221.

The spelling of 550442890 in words is "five hundred fifty million, four hundred forty-two thousand, eight hundred ninety".