32563641 has 24 divisors (see below), whose sum is σ = 48220480. Its totient is φ = 19530720.

The previous prime is 32563637. The next prime is 32563681. The reversal of 32563641 is 14636523.

It is not a de Polignac number, because 32563641 - 2² = 32563637 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 32563599 and 32563608.

It is not an unprimeable number, because it can be changed into a prime (32563681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39156 + ... + 39978.

Almost surely, 2^32563641 is an apocalyptic number.

It is an amenable number.

32563641 is a deficient number, since it is larger than the sum of its proper divisors (15656839).

32563641 is a wasteful number, since it uses less digits than its factorization.

32563641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 946 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 32563641 is about 5706.4560806161. The cubic root of 32563641 is about 319.3333811549. Note that the first 4 decimals are identical.

The spelling of 32563641 in words is "thirty-two million, five hundred sixty-three thousand, six hundred forty-one".