56111243 has 2 divisors, whose sum is σ = 56111244. Its totient is φ = 56111242.

The previous prime is 56111233. The next prime is 56111269. The reversal of 56111243 is 34211165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56111243 - 2⁸ = 56110987 is a prime.

It is not a weakly prime, because it can be changed into another prime (56111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28055621 + 28055622.

It is an arithmetic number, because the mean of its divisors is an integer number (28055622).

Almost surely, 2^56111243 is an apocalyptic number.

56111243 is a deficient number, since it is larger than the sum of its proper divisors (1).

56111243 is an equidigital number, since it uses as much as digits as its factorization.

56111243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 56111243 is about 7490.7438215440. The cubic root of 56111243 is about 382.8394025675.

The spelling of 56111243 in words is "fifty-six million, one hundred eleven thousand, two hundred forty-three".