56231603 has 4 divisors (see below), whose sum is σ = 56757240. Its totient is φ = 55705968.

The previous prime is 56231561. The next prime is 56231611. The reversal of 56231603 is 30613265.

56231603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56231603 - 2⁸ = 56231347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56236603) 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 3 ways as a sum of consecutive naturals, for example, 262658 + ... + 262871.

It is an arithmetic number, because the mean of its divisors is an integer number (14189310).

Almost surely, 2^56231603 is an apocalyptic number.

56231603 is a deficient number, since it is larger than the sum of its proper divisors (525637).

56231603 is a wasteful number, since it uses less digits than its factorization.

56231603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525636.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 56231603 is about 7498.7734330356. The cubic root of 56231603 is about 383.1129403987.

Adding to 56231603 its reverse (30613265), we get a palindrome (86844868).

The spelling of 56231603 in words is "fifty-six million, two hundred thirty-one thousand, six hundred three".