63513712 has 20 divisors (see below), whose sum is σ = 127302120. Its totient is φ = 30661568.

The previous prime is 63513707. The next prime is 63513721. The reversal of 63513712 is 21731536.

It is a super-2 number, since 2×63513712² = 8067983224037888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67978 + ... + 68905.

It is an arithmetic number, because the mean of its divisors is an integer number (6365106).

Almost surely, 2^63513712 is an apocalyptic number.

It is an amenable number.

63513712 is an abundant number, since it is smaller than the sum of its proper divisors (63788408).

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

63513712 is a wasteful number, since it uses less digits than its factorization.

63513712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136920 (or 136914 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 63513712 is about 7969.5490462133. The cubic root of 63513712 is about 398.9843231844.

The spelling of 63513712 in words is "sixty-three million, five hundred thirteen thousand, seven hundred twelve".