56555737760971 has 2 divisors, whose sum is σ = 56555737760972. Its totient is φ = 56555737760970.

The previous prime is 56555737760969. The next prime is 56555737761059. The reversal of 56555737760971 is 17906773755565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56555737760971 - 2¹ = 56555737760969 is a prime.

Together with 56555737760969, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 56555737760894 and 56555737760903.

It is not a weakly prime, because it can be changed into another prime (56555737764971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277868880485 + 28277868880486.

It is an arithmetic number, because the mean of its divisors is an integer number (28277868880486).

Almost surely, 2^{56555737760971} is an apocalyptic number.

56555737760971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56555737760971 is an equidigital number, since it uses as much as digits as its factorization.

56555737760971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458607500, while the sum is 73.

The spelling of 56555737760971 in words is "fifty-six trillion, five hundred fifty-five billion, seven hundred thirty-seven million, seven hundred sixty thousand, nine hundred seventy-one".