56806044577 has 2 divisors, whose sum is σ = 56806044578. Its totient is φ = 56806044576.

The previous prime is 56806044569. The next prime is 56806044587. The reversal of 56806044577 is 77544060865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54606809761 + 2199234816 = 233681^2 + 46896^2 .

It is a cyclic number.

It is not a de Polignac number, because 56806044577 - 2³ = 56806044569 is a prime.

It is a super-2 number, since 2×56806044577² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56806044517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28403022288 + 28403022289.

It is an arithmetic number, because the mean of its divisors is an integer number (28403022289).

Almost surely, 2^56806044577 is an apocalyptic number.

It is an amenable number.

56806044577 is a deficient number, since it is larger than the sum of its proper divisors (1).

56806044577 is an equidigital number, since it uses as much as digits as its factorization.

56806044577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 52.

The spelling of 56806044577 in words is "fifty-six billion, eight hundred six million, forty-four thousand, five hundred seventy-seven".