63501864 has 16 divisors (see below), whose sum is σ = 158754720. Its totient is φ = 21167280.

The previous prime is 63501853. The next prime is 63501881. The reversal of 63501864 is 46810536.

63501864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1322932 + ... + 1322979.

It is an arithmetic number, because the mean of its divisors is an integer number (9922170).

Almost surely, 2^63501864 is an apocalyptic number.

It is an amenable number.

63501864 is an abundant number, since it is smaller than the sum of its proper divisors (95252856).

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

63501864 is a wasteful number, since it uses less digits than its factorization.

63501864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645920 (or 2645916 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 63501864 is about 7968.8056821584. The cubic root of 63501864 is about 398.9595124777.

The spelling of 63501864 in words is "sixty-three million, five hundred one thousand, eight hundred sixty-four".