56411321 has 8 divisors (see below), whose sum is σ = 60078024. Its totient is φ = 52783360.

The previous prime is 56411297. The next prime is 56411353. The reversal of 56411321 is 12311465.

It can be written as a sum of positive squares in 4 ways, for example, as 35581225 + 20830096 = 5965^2 + 4564^2 .

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-56411321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56411371) 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, 6650 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (7509753).

Almost surely, 2^56411321 is an apocalyptic number.

It is an amenable number.

56411321 is a deficient number, since it is larger than the sum of its proper divisors (3666703).

56411321 is a wasteful number, since it uses less digits than its factorization.

56411321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371.

The product of its digits is 720, while the sum is 23.

The square root of 56411321 is about 7510.7470334182. The cubic root of 56411321 is about 383.5206534186.

Adding to 56411321 its reverse (12311465), we get a palindrome (68722786).

The spelling of 56411321 in words is "fifty-six million, four hundred eleven thousand, three hundred twenty-one".