56912113 has 2 divisors, whose sum is σ = 56912114. Its totient is φ = 56912112.

The previous prime is 56912101. The next prime is 56912117. The reversal of 56912113 is 31121965.

56912113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38353249 + 18558864 = 6193^2 + 4308^2 .

It is a cyclic number.

It is not a de Polignac number, because 56912113 - 2⁵ = 56912081 is a prime.

It is a super-2 number, since 2×56912113² = 6477977212249538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56912117) 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 as a sum of consecutive naturals, namely, 28456056 + 28456057.

It is an arithmetic number, because the mean of its divisors is an integer number (28456057).

Almost surely, 2^56912113 is an apocalyptic number.

It is an amenable number.

56912113 is a deficient number, since it is larger than the sum of its proper divisors (1).

56912113 is an equidigital number, since it uses as much as digits as its factorization.

56912113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 56912113 is about 7544.0117311680. The cubic root of 56912113 is about 384.6522141768.

The spelling of 56912113 in words is "fifty-six million, nine hundred twelve thousand, one hundred thirteen".