56810113 has 2 divisors, whose sum is σ = 56810114. Its totient is φ = 56810112.

The previous prime is 56810111. The next prime is 56810167. The reversal of 56810113 is 31101865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41576704 + 15233409 = 6448^2 + 3903^2 .

It is a cyclic number.

It is not a de Polignac number, because 56810113 - 2¹ = 56810111 is a prime.

Together with 56810111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56810111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28405056 + 28405057.

It is an arithmetic number, because the mean of its divisors is an integer number (28405057).

Almost surely, 2^56810113 is an apocalyptic number.

It is an amenable number.

56810113 is a deficient number, since it is larger than the sum of its proper divisors (1).

56810113 is an equidigital number, since it uses as much as digits as its factorization.

56810113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 56810113 is about 7537.2483705925. The cubic root of 56810113 is about 384.4222807682.

Adding to 56810113 its reverse (31101865), we get a palindrome (87911978).

The spelling of 56810113 in words is "fifty-six million, eight hundred ten thousand, one hundred thirteen".