56432321 has 8 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 51196240.

The previous prime is 56432293. The next prime is 56432351. The reversal of 56432321 is 12323465.

56432321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56432321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56432351) 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 7 ways as a sum of consecutive naturals, for example, 560 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 2^56432321 is an apocalyptic number.

It is an amenable number.

56432321 is a deficient number, since it is larger than the sum of its proper divisors (5257279).

56432321 is a wasteful number, since it uses less digits than its factorization.

56432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599.

The product of its digits is 4320, while the sum is 26.

The square root of 56432321 is about 7512.1449000934. The cubic root of 56432321 is about 383.5682380428.

Adding to 56432321 its reverse (12323465), we get a palindrome (68755786).

The spelling of 56432321 in words is "fifty-six million, four hundred thirty-two thousand, three hundred twenty-one".