63485856 has 120 divisors (see below), whose sum is σ = 213444000. Its totient is φ = 18133632.

The previous prime is 63485839. The next prime is 63485879. The reversal of 63485856 is 65858436.

63485856 is a `hidden beast` number, since 63 + 4 + 8 + 585 + 6 = 666.

63485856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 19 ways as a sum of consecutive naturals, for example, 16395 + ... + 19893.

It is an arithmetic number, because the mean of its divisors is an integer number (1778700).

Almost surely, 2^63485856 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 63485856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106722000).

63485856 is an abundant number, since it is smaller than the sum of its proper divisors (149958144).

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

63485856 is a wasteful number, since it uses less digits than its factorization.

63485856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528 (or 3511 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 63485856 is about 7967.8012023393. The cubic root of 63485856 is about 398.9259854797.

The spelling of 63485856 in words is "sixty-three million, four hundred eighty-five thousand, eight hundred fifty-six".