63998552 has 16 divisors (see below), whose sum is σ = 120085440. Its totient is φ = 31975776.

The previous prime is 63998533. The next prime is 63998569. The reversal of 63998552 is 25589936.

It is a junction number, because it is equal to n+sod(n) for n = 63998497 and 63998506.

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, 15278 + ... + 19010.

It is an arithmetic number, because the mean of its divisors is an integer number (7505340).

Almost surely, 2^63998552 is an apocalyptic number.

It is an amenable number.

63998552 is a deficient number, since it is larger than the sum of its proper divisors (56086888).

63998552 is a wasteful number, since it uses less digits than its factorization.

63998552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882 (or 5878 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The square root of 63998552 is about 7999.9094994881. The cubic root of 63998552 is about 399.9969833106.

The spelling of 63998552 in words is "sixty-three million, nine hundred ninety-eight thousand, five hundred fifty-two".