6405253222 has 4 divisors (see below), whose sum is σ = 9607879836. Its totient is φ = 3202626610.

The previous prime is 6405253207. The next prime is 6405253223. The reversal of 6405253222 is 2223525046.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405253223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601313304 + ... + 1601313307.

It is an arithmetic number, because the mean of its divisors is an integer number (2401969959).

Almost surely, 2^6405253222 is an apocalyptic number.

6405253222 is a deficient number, since it is larger than the sum of its proper divisors (3202626614).

6405253222 is a wasteful number, since it uses less digits than its factorization.

6405253222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202626613.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 6405253222 is about 80032.8259028756. The cubic root of 6405253222 is about 1857.1433798663.

Adding to 6405253222 its reverse (2223525046), we get a palindrome (8628778268).

The spelling of 6405253222 in words is "six billion, four hundred five million, two hundred fifty-three thousand, two hundred twenty-two".