32563520440 has 64 divisors (see below), whose sum is σ = 80037020160. Its totient is φ = 11825224320.

The previous prime is 32563520413. The next prime is 32563520449. The reversal of 32563520440 is 4402536523.

It is a junction number, because it is equal to n+sod(n) for n = 32563520396 and 32563520405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32563520449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277117 + ... + 376723.

It is an arithmetic number, because the mean of its divisors is an integer number (1250578440).

Almost surely, 2^32563520440 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 32563520440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40018510080).

32563520440 is an abundant number, since it is smaller than the sum of its proper divisors (47473499720).

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

32563520440 is a wasteful number, since it uses less digits than its factorization.

32563520440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100372 (or 100368 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 32563520440 in words is "thirty-two billion, five hundred sixty-three million, five hundred twenty thousand, four hundred forty".