56180504209 has 2 divisors, whose sum is σ = 56180504210. Its totient is φ = 56180504208.

The previous prime is 56180504203. The next prime is 56180504221. The reversal of 56180504209 is 90240508165.

56180504209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33106894209 + 23073610000 = 181953^2 + 151900^2 .

It is a cyclic number.

It is not a de Polignac number, because 56180504209 - 2⁹ = 56180503697 is a prime.

It is not a weakly prime, because it can be changed into another prime (56180504203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28090252104 + 28090252105.

It is an arithmetic number, because the mean of its divisors is an integer number (28090252105).

Almost surely, 2^56180504209 is an apocalyptic number.

It is an amenable number.

56180504209 is a deficient number, since it is larger than the sum of its proper divisors (1).

56180504209 is an equidigital number, since it uses as much as digits as its factorization.

56180504209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 56180504209 in words is "fifty-six billion, one hundred eighty million, five hundred four thousand, two hundred nine".