6537222 has 12 divisors (see below), whose sum is σ = 14164020. Its totient is φ = 2179068.

The previous prime is 6537217. The next prime is 6537227. The reversal of 6537222 is 2227356.

6537222 is a `hidden beast` number, since 653 + 7 + 2 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (6537217) and next prime (6537227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6537227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181572 + ... + 181607.

It is an arithmetic number, because the mean of its divisors is an integer number (1180335).

Almost surely, 2^6537222 is an apocalyptic number.

6537222 is an abundant number, since it is smaller than the sum of its proper divisors (7626798).

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

6537222 is a wasteful number, since it uses less digits than its factorization.

6537222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363187 (or 363184 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 6537222 is about 2556.7991708384. The cubic root of 6537222 is about 186.9811147009.

It can be divided in two parts, 653 and 7222, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 6537222 in words is "six million, five hundred thirty-seven thousand, two hundred twenty-two".