32561452 has 48 divisors (see below), whose sum is σ = 72092160. Its totient is φ = 12499200.

The previous prime is 32561447. The next prime is 32561453. The reversal of 32561452 is 25416523.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 32561452.

It is not an unprimeable number, because it can be changed into a prime (32561453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21124 + ... + 22612.

It is an arithmetic number, because the mean of its divisors is an integer number (1501920).

Almost surely, 2^32561452 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 32561452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36046080).

32561452 is an abundant number, since it is smaller than the sum of its proper divisors (39530708).

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

32561452 is a wasteful number, since it uses less digits than its factorization.

32561452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1580 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 32561452 is about 5706.2642770906. The cubic root of 32561452 is about 319.3262255624.

Adding to 32561452 its reverse (25416523), we get a palindrome (57977975).

Subtracting from 32561452 its reverse (25416523), we obtain a square (7144929 = 2673²).

The spelling of 32561452 in words is "thirty-two million, five hundred sixty-one thousand, four hundred fifty-two".