56609840801 has 2 divisors, whose sum is σ = 56609840802. Its totient is φ = 56609840800.

The previous prime is 56609840753. The next prime is 56609840827. The reversal of 56609840801 is 10804890665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56235379600 + 374461201 = 237140^2 + 19351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56609840801 is a prime.

It is not a weakly prime, because it can be changed into another prime (56609840701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28304920400 + 28304920401.

It is an arithmetic number, because the mean of its divisors is an integer number (28304920401).

Almost surely, 2^56609840801 is an apocalyptic number.

It is an amenable number.

56609840801 is a deficient number, since it is larger than the sum of its proper divisors (1).

56609840801 is an equidigital number, since it uses as much as digits as its factorization.

56609840801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 56609840801 in words is "fifty-six billion, six hundred nine million, eight hundred forty thousand, eight hundred one".