56523260513 has 2 divisors, whose sum is σ = 56523260514. Its totient is φ = 56523260512.

The previous prime is 56523260459. The next prime is 56523260609. The reversal of 56523260513 is 31506232565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46704828769 + 9818431744 = 216113^2 + 99088^2 .

It is a cyclic number.

It is not a de Polignac number, because 56523260513 - 2¹⁶ = 56523194977 is a prime.

It is not a weakly prime, because it can be changed into another prime (56523262513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28261630256 + 28261630257.

It is an arithmetic number, because the mean of its divisors is an integer number (28261630257).

Almost surely, 2^56523260513 is an apocalyptic number.

It is an amenable number.

56523260513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56523260513 is an equidigital number, since it uses as much as digits as its factorization.

56523260513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 56523260513 in words is "fifty-six billion, five hundred twenty-three million, two hundred sixty thousand, five hundred thirteen".