63538992 has 100 divisors (see below), whose sum is σ = 200663496. Its totient is φ = 19249920.

The previous prime is 63538987. The next prime is 63539009. The reversal of 63538992 is 29983536.

63538992 is a `hidden beast` number, since 635 + 3 + 8 + 9 + 9 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12028 + ... + 16484.

Almost surely, 2^63538992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63538992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100331748).

63538992 is an abundant number, since it is smaller than the sum of its proper divisors (137124504).

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

63538992 is a wasteful number, since it uses less digits than its factorization.

63538992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488 (or 4473 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 63538992 is about 7971.1349254670. The cubic root of 63538992 is about 399.0372513132.

The spelling of 63538992 in words is "sixty-three million, five hundred thirty-eight thousand, nine hundred ninety-two".