7222556 has 12 divisors (see below), whose sum is σ = 13788600. Its totient is φ = 3282960.

The previous prime is 7222549. The next prime is 7222559. The reversal of 7222556 is 6552227.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82031 + ... + 82118.

It is an arithmetic number, because the mean of its divisors is an integer number (1149050).

Almost surely, 2^7222556 is an apocalyptic number.

It is an amenable number.

7222556 is a deficient number, since it is larger than the sum of its proper divisors (6566044).

7222556 is a wasteful number, since it uses less digits than its factorization.

7222556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164164 (or 164162 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 7222556 is about 2687.4813487725. The cubic root of 7222556 is about 193.2993109639.

The spelling of 7222556 in words is "seven million, two hundred twenty-two thousand, five hundred fifty-six".