5613213218 has 4 divisors (see below), whose sum is σ = 8419819830. Its totient is φ = 2806606608.

The previous prime is 5613213161. The next prime is 5613213239. The reversal of 5613213218 is 8123123165.

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., 5023549129 + 589664089 = 70877^2 + 24283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403303303 + ... + 1403303306.

Almost surely, 2^5613213218 is an apocalyptic number.

5613213218 is a deficient number, since it is larger than the sum of its proper divisors (2806606612).

5613213218 is a wasteful number, since it uses less digits than its factorization.

5613213218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806606611.

The product of its digits is 8640, while the sum is 32.

The square root of 5613213218 is about 74921.3802462288. The cubic root of 5613213218 is about 1777.2035813340.

The spelling of 5613213218 in words is "five billion, six hundred thirteen million, two hundred thirteen thousand, two hundred eighteen".