63566536 has 32 divisors (see below), whose sum is σ = 137674080. Its totient is φ = 27193600.

The previous prime is 63566527. The next prime is 63566537.

63566536 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (63566537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19750 + ... + 22741.

It is an arithmetic number, because the mean of its divisors is an integer number (4302315).

Almost surely, 2^63566536 is an apocalyptic number.

It is an amenable number.

63566536 is an abundant number, since it is smaller than the sum of its proper divisors (74107544).

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

63566536 is a wasteful number, since it uses less digits than its factorization.

63566536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42525 (or 42521 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

The square root of 63566536 is about 7972.8624721614. The cubic root of 63566536 is about 399.0949035457.

The spelling of 63566536 in words is "sixty-three million, five hundred sixty-six thousand, five hundred thirty-six".