63226656 has 144 divisors (see below), whose sum is σ = 191528064. Its totient is φ = 20507904.

The previous prime is 63226651. The next prime is 63226679. The reversal of 63226656 is 65662236.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×63226656² = 7995220057884672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 63226656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63226651) 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, 365386 + ... + 365558.

It is an arithmetic number, because the mean of its divisors is an integer number (1330056).

Almost surely, 2^63226656 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 63226656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95764032).

63226656 is an abundant number, since it is smaller than the sum of its proper divisors (128301408).

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

63226656 is a wasteful number, since it uses less digits than its factorization.

63226656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 225 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 63226656 is about 7951.5191001468. The cubic root of 63226656 is about 398.3823333725.

The spelling of 63226656 in words is "sixty-three million, two hundred twenty-six thousand, six hundred fifty-six".