63925616 has 10 divisors (see below), whose sum is σ = 123855912. Its totient is φ = 31962800.

The previous prime is 63925613. The next prime is 63925637. The reversal of 63925616 is 61652936.

It is a self number, because there is not a number n which added to its sum of digits gives 63925616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63925613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997660 + ... + 1997691.

Almost surely, 2^63925616 is an apocalyptic number.

It is an amenable number.

63925616 is a deficient number, since it is larger than the sum of its proper divisors (59930296).

63925616 is a wasteful number, since it uses less digits than its factorization.

63925616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995359 (or 3995353 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 63925616 is about 7995.3496483894. The cubic root of 63925616 is about 399.8449732579.

The spelling of 63925616 in words is "sixty-three million, nine hundred twenty-five thousand, six hundred sixteen".