56009113 has 4 divisors (see below), whose sum is σ = 56958480. Its totient is φ = 55059748.

The previous prime is 56009111. The next prime is 56009137. The reversal of 56009113 is 31190065.

56009113 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31190065 = 5 ⋅6238013.

It is a cyclic number.

It is not a de Polignac number, because 56009113 - 2¹ = 56009111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56009111) 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, 474595 + ... + 474712.

It is an arithmetic number, because the mean of its divisors is an integer number (14239620).

Almost surely, 2^56009113 is an apocalyptic number.

It is an amenable number.

56009113 is a deficient number, since it is larger than the sum of its proper divisors (949367).

56009113 is an equidigital number, since it uses as much as digits as its factorization.

56009113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949366.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 56009113 is about 7483.9236367029. The cubic root of 56009113 is about 382.6069884549.

Adding to 56009113 its reverse (31190065), we get a palindrome (87199178).

The spelling of 56009113 in words is "fifty-six million, nine thousand, one hundred thirteen".