63563860 has 12 divisors (see below), whose sum is σ = 133484148. Its totient is φ = 25425536.

The previous prime is 63563839. The next prime is 63563861. The reversal of 63563860 is 6836536.

63563860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8031556 + 55532304 = 2834^2 + 7452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63563861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589077 + ... + 1589116.

It is an arithmetic number, because the mean of its divisors is an integer number (11123679).

Almost surely, 2^63563860 is an apocalyptic number.

It is an amenable number.

63563860 is an abundant number, since it is smaller than the sum of its proper divisors (69920288).

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

63563860 is a wasteful number, since it uses less digits than its factorization.

63563860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178202 (or 3178200 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 63563860 is about 7972.6946511202. The cubic root of 63563860 is about 399.0893031517.

The spelling of 63563860 in words is "sixty-three million, five hundred sixty-three thousand, eight hundred sixty".