63511056 has 90 divisors (see below), whose sum is σ = 206784942. Its totient is φ = 18144000.

The previous prime is 63511003. The next prime is 63511057. The reversal of 63511056 is 65011536.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 18352656 = 6720^2 + 4284^2 .

It is not an unprimeable number, because it can be changed into a prime (63511057) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2556 + ... + 11556.

Almost surely, 2^63511056 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 63511056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103392471).

63511056 is an abundant number, since it is smaller than the sum of its proper divisors (143273886).

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

63511056 is a wasteful number, since it uses less digits than its factorization.

63511056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029 (or 9013 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 63511056 is about 7969.3824101997. The cubic root of 63511056 is about 398.9787615657.

The spelling of 63511056 in words is "sixty-three million, five hundred eleven thousand, fifty-six".