53222656 has 72 divisors (see below), whose sum is σ = 112583520. Its totient is φ = 25073664.

The previous prime is 53222641. The next prime is 53222669. The reversal of 53222656 is 65622235.

It is a super-2 number, since 2×53222656² = 5665302223388672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497355 + ... + 497461.

It is an arithmetic number, because the mean of its divisors is an integer number (1563660).

Almost surely, 2^53222656 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 53222656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56291760).

53222656 is an abundant number, since it is smaller than the sum of its proper divisors (59360864).

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

53222656 is a wasteful number, since it uses less digits than its factorization.

53222656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 205 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 53222656 is about 7295.3859390714. The cubic root of 53222656 is about 376.1538528364.

The spelling of 53222656 in words is "fifty-three million, two hundred twenty-two thousand, six hundred fifty-six".