5221656 has 96 divisors (see below), whose sum is σ = 16286400. Its totient is φ = 1494720.

The previous prime is 5221651. The next prime is 5221673. The reversal of 5221656 is 6561225.

5221656 is a `hidden beast` number, since 5 + 2 + 2 + 1 + 656 = 666.

5221656 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14875 + ... + 15221.

It is an arithmetic number, because the mean of its divisors is an integer number (169650).

Almost surely, 2^5221656 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 5221656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8143200).

5221656 is an abundant number, since it is smaller than the sum of its proper divisors (11064744).

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

5221656 is a wasteful number, since it uses less digits than its factorization.

5221656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 382 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5221656 is about 2285.0943087759. The cubic root of 5221656 is about 173.4879914840.

The spelling of 5221656 in words is "five million, two hundred twenty-one thousand, six hundred fifty-six".