56281103 has 4 divisors (see below), whose sum is σ = 57235080. Its totient is φ = 55327128.

The previous prime is 56281087. The next prime is 56281111. The reversal of 56281103 is 30118265.

56281103 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, and also an emirpimes, since its reverse is a distinct semiprime: 30118265 = 5 ⋅6023653.

It is a cyclic number.

It is not a de Polignac number, because 56281103 - 2⁴ = 56281087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56281133) 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, 476900 + ... + 477017.

It is an arithmetic number, because the mean of its divisors is an integer number (14308770).

Almost surely, 2^56281103 is an apocalyptic number.

56281103 is a deficient number, since it is larger than the sum of its proper divisors (953977).

56281103 is an equidigital number, since it uses as much as digits as its factorization.

56281103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953976.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 56281103 is about 7502.0732467765. The cubic root of 56281103 is about 383.2253239911.

Adding to 56281103 its reverse (30118265), we get a palindrome (86399368).

The spelling of 56281103 in words is "fifty-six million, two hundred eighty-one thousand, one hundred three".