56057051837 has 2 divisors, whose sum is σ = 56057051838. Its totient is φ = 56057051836.

The previous prime is 56057051833. The next prime is 56057051849. The reversal of 56057051837 is 73815075065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48924573721 + 7132478116 = 221189^2 + 84454^2 .

It is a cyclic number.

It is not a de Polignac number, because 56057051837 - 2² = 56057051833 is a prime.

It is a super-2 number, since 2×56057051837² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56057051791 and 56057051800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56057051833) 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, 28028525918 + 28028525919.

It is an arithmetic number, because the mean of its divisors is an integer number (28028525919).

Almost surely, 2^56057051837 is an apocalyptic number.

It is an amenable number.

56057051837 is a deficient number, since it is larger than the sum of its proper divisors (1).

56057051837 is an equidigital number, since it uses as much as digits as its factorization.

56057051837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 56057051837 in words is "fifty-six billion, fifty-seven million, fifty-one thousand, eight hundred thirty-seven".