6518222 has 4 divisors (see below), whose sum is σ = 9777336. Its totient is φ = 3259110.

The previous prime is 6518209. The next prime is 6518227. The reversal of 6518222 is 2228156.

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

It is a junction number, because it is equal to n+sod(n) for n = 6518191 and 6518200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6518227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1629554 + ... + 1629557.

It is an arithmetic number, because the mean of its divisors is an integer number (2444334).

Almost surely, 2^6518222 is an apocalyptic number.

6518222 is a deficient number, since it is larger than the sum of its proper divisors (3259114).

6518222 is a wasteful number, since it uses less digits than its factorization.

6518222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259113.

The product of its digits is 1920, while the sum is 26.

The square root of 6518222 is about 2553.0808839518. The cubic root of 6518222 is about 186.7997895352.

The spelling of 6518222 in words is "six million, five hundred eighteen thousand, two hundred twenty-two".