63539020 has 12 divisors (see below), whose sum is σ = 133431984. Its totient is φ = 25415600.

The previous prime is 63539017. The next prime is 63539023. The reversal of 63539020 is 2093536.

63539020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63539017) and next prime (63539023).

It is a self number, because there is not a number n which added to its sum of digits gives 63539020.

It is not an unprimeable number, because it can be changed into a prime (63539023) 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, 1588456 + ... + 1588495.

It is an arithmetic number, because the mean of its divisors is an integer number (11119332).

Almost surely, 2^63539020 is an apocalyptic number.

It is an amenable number.

63539020 is an abundant number, since it is smaller than the sum of its proper divisors (69892964).

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

63539020 is a wasteful number, since it uses less digits than its factorization.

63539020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176960 (or 3176958 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 63539020 is about 7971.1366818039. The cubic root of 63539020 is about 399.0373099283.

The spelling of 63539020 in words is "sixty-three million, five hundred thirty-nine thousand, twenty".