7225656 has 64 divisors (see below), whose sum is σ = 18969600. Its totient is φ = 2291328.

The previous prime is 7225651. The next prime is 7225661. The reversal of 7225656 is 6565227.

It is an interprime number because it is at equal distance from previous prime (7225651) and next prime (7225661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225651) 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, 70101 + ... + 70203.

It is an arithmetic number, because the mean of its divisors is an integer number (296400).

Almost surely, 2^7225656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7225656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9484800).

7225656 is an abundant number, since it is smaller than the sum of its proper divisors (11743944).

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

7225656 is a wasteful number, since it uses less digits than its factorization.

7225656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 224 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 7225656 is about 2688.0580350878. The cubic root of 7225656 is about 193.3269624007.

The spelling of 7225656 in words is "seven million, two hundred twenty-five thousand, six hundred fifty-six".