63755540 has 24 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 24393248.

The previous prime is 63755539. The next prime is 63755567. The reversal of 63755540 is 4555736.

63755540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63755540.

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 7 ways as a sum of consecutive naturals, for example, 68840 + ... + 69759.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^63755540 is an apocalyptic number.

It is an amenable number.

63755540 is an abundant number, since it is smaller than the sum of its proper divisors (75953260).

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

63755540 is a wasteful number, since it uses less digits than its factorization.

63755540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138631 (or 138629 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 63755540 is about 7984.7066320561. The cubic root of 63755540 is about 399.4900585088.

The spelling of 63755540 in words is "sixty-three million, seven hundred fifty-five thousand, five hundred forty".