63806560 has 96 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 23846400.

The previous prime is 63806551. The next prime is 63806581. The reversal of 63806560 is 6560836.

63806560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 422485 + ... + 422635.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^63806560 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 63806560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80438400).

63806560 is an abundant number, since it is smaller than the sum of its proper divisors (97070240).

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

63806560 is a wasteful number, since it uses less digits than its factorization.

63806560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 63806560 is about 7987.9008506616. The cubic root of 63806560 is about 399.5965932943.

The spelling of 63806560 in words is "sixty-three million, eight hundred six thousand, five hundred sixty".