56320401 has 16 divisors (see below), whose sum is σ = 78284864. Its totient is φ = 35982144.

The previous prime is 56320387. The next prime is 56320403. The reversal of 56320401 is 10402365.

It is a happy number.

56320401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56320401 - 2¹⁰ = 56319377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56320403) 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, 3651 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (4892804).

Almost surely, 2^56320401 is an apocalyptic number.

It is an amenable number.

56320401 is a deficient number, since it is larger than the sum of its proper divisors (21964463).

56320401 is a wasteful number, since it uses less digits than its factorization.

56320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 56320401 is about 7504.6919323847. The cubic root of 56320401 is about 383.3144982974.

Adding to 56320401 its reverse (10402365), we get a palindrome (66722766).

The spelling of 56320401 in words is "fifty-six million, three hundred twenty thousand, four hundred one".