56043321 has 8 divisors (see below), whose sum is σ = 74812224. Its totient is φ = 37318320.

The previous prime is 56043307. The next prime is 56043329. The reversal of 56043321 is 12334065.

It is a happy number.

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

It is not a de Polignac number, because 56043321 - 2⁷ = 56043193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56043291 and 56043300.

It is not an unprimeable number, because it can be changed into a prime (56043329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7870 + ... + 13191.

It is an arithmetic number, because the mean of its divisors is an integer number (9351528).

Almost surely, 2^56043321 is an apocalyptic number.

It is an amenable number.

56043321 is a deficient number, since it is larger than the sum of its proper divisors (18768903).

56043321 is a wasteful number, since it uses less digits than its factorization.

56043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21951.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 56043321 is about 7486.2087200398. The cubic root of 56043321 is about 382.6848659971.

Adding to 56043321 its reverse (12334065), we get a palindrome (68377386).

The spelling of 56043321 in words is "fifty-six million, forty-three thousand, three hundred twenty-one".