32543532 has 72 divisors (see below), whose sum is σ = 97517056. Its totient is φ = 9296208.

The previous prime is 32543531. The next prime is 32543543. The reversal of 32543532 is 23534523.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 32543496 and 32543505.

It is not an unprimeable number, because it can be changed into a prime (32543531) 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, 4413 + ... + 9195.

Almost surely, 2^32543532 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 32543532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48758528).

32543532 is an abundant number, since it is smaller than the sum of its proper divisors (64973524).

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

32543532 is a wasteful number, since it uses less digits than its factorization.

32543532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809 (or 4795 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 32543532 is about 5704.6938568165. The cubic root of 32543532 is about 319.2676350545.

Subtracting from 32543532 its reverse (23534523), we obtain a palindrome (9009009).

It can be divided in two parts, 3254 and 3532, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 32543532 in words is "thirty-two million, five hundred forty-three thousand, five hundred thirty-two".