63988225 has 24 divisors (see below), whose sum is σ = 92404800. Its totient is φ = 43043520.

The previous prime is 63988217. The next prime is 63988261. The reversal of 63988225 is 52288936.

It is not a de Polignac number, because 63988225 - 2³ = 63988217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5826 + ... + 12724.

It is an arithmetic number, because the mean of its divisors is an integer number (3850200).

Almost surely, 2^63988225 is an apocalyptic number.

It is an amenable number.

63988225 is a deficient number, since it is larger than the sum of its proper divisors (28416575).

63988225 is a wasteful number, since it uses less digits than its factorization.

63988225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969 (or 6964 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 63988225 is about 7999.2640286466. The cubic root of 63988225 is about 399.9754672454.

The spelling of 63988225 in words is "sixty-three million, nine hundred eighty-eight thousand, two hundred twenty-five".