56549259317 has 2 divisors, whose sum is σ = 56549259318. Its totient is φ = 56549259316.

The previous prime is 56549259271. The next prime is 56549259341. The reversal of 56549259317 is 71395294565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56548364401 + 894916 = 237799^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 56549259317 - 2¹⁶ = 56549193781 is a prime.

It is a super-2 number, since 2×56549259317² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56549259617) 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, 28274629658 + 28274629659.

It is an arithmetic number, because the mean of its divisors is an integer number (28274629659).

Almost surely, 2^56549259317 is an apocalyptic number.

It is an amenable number.

56549259317 is a deficient number, since it is larger than the sum of its proper divisors (1).

56549259317 is an equidigital number, since it uses as much as digits as its factorization.

56549259317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206000, while the sum is 56.

The spelling of 56549259317 in words is "fifty-six billion, five hundred forty-nine million, two hundred fifty-nine thousand, three hundred seventeen".