56555074687 has 2 divisors, whose sum is σ = 56555074688. Its totient is φ = 56555074686.

The previous prime is 56555074673. The next prime is 56555074711. The reversal of 56555074687 is 78647055565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56555074687 - 2⁷ = 56555074559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56555074607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277537343 + 28277537344.

It is an arithmetic number, because the mean of its divisors is an integer number (28277537344).

Almost surely, 2^56555074687 is an apocalyptic number.

56555074687 is a deficient number, since it is larger than the sum of its proper divisors (1).

56555074687 is an equidigital number, since it uses as much as digits as its factorization.

56555074687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280000, while the sum is 58.

The spelling of 56555074687 in words is "fifty-six billion, five hundred fifty-five million, seventy-four thousand, six hundred eighty-seven".