5521656 has 64 divisors (see below), whose sum is σ = 16473600. Its totient is φ = 1507968.

The previous prime is 5521643. The next prime is 5521657. The reversal of 5521656 is 6561255.

5521656 = 49² + 50² + ... + 255².

5521656 is a modest number, since divided by 1656 gives 552 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521657) 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, 3150 + ... + 4578.

It is an arithmetic number, because the mean of its divisors is an integer number (257400).

Almost surely, 2^5521656 is an apocalyptic number.

5521656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5521656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8236800).

5521656 is an abundant number, since it is smaller than the sum of its proper divisors (10951944).

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

5521656 is a wasteful number, since it uses less digits than its factorization.

5521656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1464 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 5521656 is about 2349.8204186703. The cubic root of 5521656 is about 176.7487897929.

The spelling of 5521656 in words is "five million, five hundred twenty-one thousand, six hundred fifty-six".