32552220432 has 80 divisors (see below), whose sum is σ = 89218039680. Its totient is φ = 10192029696.

The previous prime is 32552220427. The next prime is 32552220443. The reversal of 32552220432 is 23402225523.

It is a self number, because there is not a number n which added to its sum of digits gives 32552220432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370794 + ... + 450102.

It is an arithmetic number, because the mean of its divisors is an integer number (1115225496).

Almost surely, 2^32552220432 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 32552220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44609019840).

32552220432 is an abundant number, since it is smaller than the sum of its proper divisors (56665819248).

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

32552220432 is a wasteful number, since it uses less digits than its factorization.

32552220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79840 (or 79834 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 32552220432 its reverse (23402225523), we get a palindrome (55954445955).

The spelling of 32552220432 in words is "thirty-two billion, five hundred fifty-two million, two hundred twenty thousand, four hundred thirty-two".