550535218 has 4 divisors (see below), whose sum is σ = 825802830. Its totient is φ = 275267608.

The previous prime is 550535189. The next prime is 550535273. The reversal of 550535218 is 812535055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 546951769 + 3583449 = 23387^2 + 1893^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137633803 + ... + 137633806.

Almost surely, 2^550535218 is an apocalyptic number.

550535218 is a deficient number, since it is larger than the sum of its proper divisors (275267612).

550535218 is a wasteful number, since it uses less digits than its factorization.

550535218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275267611.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 550535218 is about 23463.4869105169. The cubic root of 550535218 is about 819.5869514039.

The spelling of 550535218 in words is "five hundred fifty million, five hundred thirty-five thousand, two hundred eighteen".