6555222 has 32 divisors (see below), whose sum is σ = 14657760. Its totient is φ = 2171520.

The previous prime is 6555173. The next prime is 6555223. The reversal of 6555222 is 2225556.

6555222 is a `hidden beast` number, since 655 + 5 + 2 + 2 + 2 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12322 + ... + 12842.

It is an arithmetic number, because the mean of its divisors is an integer number (458055).

Almost surely, 2^6555222 is an apocalyptic number.

6555222 is an abundant number, since it is smaller than the sum of its proper divisors (8102538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6555222 is a wasteful number, since it uses less digits than its factorization.

6555222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 759 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 6555222 is about 2560.3167772758. The cubic root of 6555222 is about 187.1525726335.

The spelling of 6555222 in words is "six million, five hundred fifty-five thousand, two hundred twenty-two".