56560111 has 2 divisors, whose sum is σ = 56560112. Its totient is φ = 56560110.

The previous prime is 56560103. The next prime is 56560117. The reversal of 56560111 is 11106565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56560111 - 2³ = 56560103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56560117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28280055 + 28280056.

It is an arithmetic number, because the mean of its divisors is an integer number (28280056).

Almost surely, 2^56560111 is an apocalyptic number.

56560111 is a deficient number, since it is larger than the sum of its proper divisors (1).

56560111 is an equidigital number, since it uses as much as digits as its factorization.

56560111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 56560111 is about 7520.6456504744. The cubic root of 56560111 is about 383.8575476204.

Adding to 56560111 its reverse (11106565), we get a palindrome (67666676).

The spelling of 56560111 in words is "fifty-six million, five hundred sixty thousand, one hundred eleven".