56543232 has 48 divisors (see below), whose sum is σ = 150761520. Its totient is φ = 18845696.

The previous prime is 56543231. The next prime is 56543261. The reversal of 56543232 is 23234565.

56543232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (48).

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 56543232.

It is not an unprimeable number, because it can be changed into a prime (56543231) 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, 1543 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (3140865).

Almost surely, 2^56543232 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 56543232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75380760).

56543232 is an abundant number, since it is smaller than the sum of its proper divisors (94218288).

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

56543232 is an equidigital number, since it uses as much as digits as its factorization.

56543232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228 (or 9208 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 56543232 is about 7519.5233891517. The cubic root of 56543232 is about 383.8193594812.

Adding to 56543232 its reverse (23234565), we get a palindrome (79777797).

The spelling of 56543232 in words is "fifty-six million, five hundred forty-three thousand, two hundred thirty-two".