63385540 has 12 divisors (see below), whose sum is σ = 133109676. Its totient is φ = 25354208.

The previous prime is 63385519. The next prime is 63385541. The reversal of 63385540 is 4558336.

It can be written as a sum of positive squares in 2 ways, for example, as 46212804 + 17172736 = 6798^2 + 4144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63385496 and 63385505.

It is not an unprimeable number, because it can be changed into a prime (63385541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584619 + ... + 1584658.

It is an arithmetic number, because the mean of its divisors is an integer number (11092473).

Almost surely, 2^63385540 is an apocalyptic number.

It is an amenable number.

63385540 is an abundant number, since it is smaller than the sum of its proper divisors (69724136).

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

63385540 is a wasteful number, since it uses less digits than its factorization.

63385540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169286 (or 3169284 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 63385540 is about 7961.5036268283. The cubic root of 63385540 is about 398.7157562074.

The spelling of 63385540 in words is "sixty-three million, three hundred eighty-five thousand, five hundred forty".