56055601009 has 2 divisors, whose sum is σ = 56055601010. Its totient is φ = 56055601008.

The previous prime is 56055600971. The next prime is 56055601013. The reversal of 56055601009 is 90010655065.

56055601009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40122093025 + 15933507984 = 200305^2 + 126228^2 .

It is a cyclic number.

It is not a de Polignac number, because 56055601009 - 2³⁵ = 21695862641 is a prime.

It is not a weakly prime, because it can be changed into another prime (56055601709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027800504 + 28027800505.

It is an arithmetic number, because the mean of its divisors is an integer number (28027800505).

Almost surely, 2^56055601009 is an apocalyptic number.

It is an amenable number.

56055601009 is a deficient number, since it is larger than the sum of its proper divisors (1).

56055601009 is an equidigital number, since it uses as much as digits as its factorization.

56055601009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 56055601009 in words is "fifty-six billion, fifty-five million, six hundred one thousand, nine".