56559611 has 2 divisors, whose sum is σ = 56559612. Its totient is φ = 56559610.

The previous prime is 56559563. The next prime is 56559619. The reversal of 56559611 is 11695565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56559611 is a prime.

It is equal to p_3369674 and since 56559611 and 3369674 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (56559619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28279805 + 28279806.

It is an arithmetic number, because the mean of its divisors is an integer number (28279806).

Almost surely, 2^56559611 is an apocalyptic number.

56559611 is a deficient number, since it is larger than the sum of its proper divisors (1).

56559611 is an equidigital number, since it uses as much as digits as its factorization.

56559611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 38.

The square root of 56559611 is about 7520.6124085742. The cubic root of 56559611 is about 383.8564164973.

The spelling of 56559611 in words is "fifty-six million, five hundred fifty-nine thousand, six hundred eleven".