5558223218 has 4 divisors (see below), whose sum is σ = 8337334830. Its totient is φ = 2779111608.

The previous prime is 5558223211. The next prime is 5558223239. The reversal of 5558223218 is 8123228555.

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., 5420935129 + 137288089 = 73627^2 + 11717^2 .

It is a super-2 number, since 2×5558223218² = 61787690682228551048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5558223211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389555803 + ... + 1389555806.

Almost surely, 2^5558223218 is an apocalyptic number.

5558223218 is a deficient number, since it is larger than the sum of its proper divisors (2779111612).

5558223218 is a wasteful number, since it uses less digits than its factorization.

5558223218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779111611.

The product of its digits is 192000, while the sum is 41.

The square root of 5558223218 is about 74553.4923259803. The cubic root of 5558223218 is about 1771.3810513781.

The spelling of 5558223218 in words is "five billion, five hundred fifty-eight million, two hundred twenty-three thousand, two hundred eighteen".