32320020552 has 16 divisors (see below), whose sum is σ = 80800051440. Its totient is φ = 10773340176.

The previous prime is 32320020539. The next prime is 32320020559. The reversal of 32320020552 is 25502002323.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1346667523 = 32320020552 / (3 + 2 + 3 + 2 + 0 + 0 + 2 + 0 + 5 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (32320020559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673333738 + ... + 673333785.

It is an arithmetic number, because the mean of its divisors is an integer number (5050003215).

Almost surely, 2^32320020552 is an apocalyptic number.

It is an amenable number.

32320020552 is an abundant number, since it is smaller than the sum of its proper divisors (48480030888).

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

32320020552 is a wasteful number, since it uses less digits than its factorization.

32320020552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346667532 (or 1346667528 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 32320020552 its reverse (25502002323), we get a palindrome (57822022875).

The spelling of 32320020552 in words is "thirty-two billion, three hundred twenty million, twenty thousand, five hundred fifty-two".