63563436 has 108 divisors (see below), whose sum is σ = 174464472. Its totient is φ = 19502208.

The previous prime is 63563431. The next prime is 63563443. The reversal of 63563436 is 63436536.

It is a happy number.

63563436 is a `hidden beast` number, since 63 + 563 + 4 + 36 = 666.

It is a super-2 number, since 2×63563436² = 8080620792252192, 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 63563436.

It is not an unprimeable number, because it can be changed into a prime (63563431) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 870696 + ... + 870768.

Almost surely, 2^63563436 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 63563436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87232236).

63563436 is an abundant number, since it is smaller than the sum of its proper divisors (110901036).

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

63563436 is a wasteful number, since it uses less digits than its factorization.

63563436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 164 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

The square root of 63563436 is about 7972.6680603171. The cubic root of 63563436 is about 399.0884157803.

The spelling of 63563436 in words is "sixty-three million, five hundred sixty-three thousand, four hundred thirty-six".