56056115657 has 2 divisors, whose sum is σ = 56056115658. Its totient is φ = 56056115656.

The previous prime is 56056115651. The next prime is 56056115659. The reversal of 56056115657 is 75651165065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40824606601 + 15231509056 = 202051^2 + 123416^2 .

It is a cyclic number.

It is not a de Polignac number, because 56056115657 - 2⁴ = 56056115641 is a prime.

It is a super-3 number, since 3×56056115657³ (a number of 33 digits) contains 333 as substring.

Together with 56056115659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56056115651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28028057828 + 28028057829.

It is an arithmetic number, because the mean of its divisors is an integer number (28028057829).

Almost surely, 2^56056115657 is an apocalyptic number.

It is an amenable number.

56056115657 is a deficient number, since it is larger than the sum of its proper divisors (1).

56056115657 is an equidigital number, since it uses as much as digits as its factorization.

56056115657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 56056115657 in words is "fifty-six billion, fifty-six million, one hundred fifteen thousand, six hundred fifty-seven".