56565753481 has 2 divisors, whose sum is σ = 56565753482. Its totient is φ = 56565753480.

The previous prime is 56565753479. The next prime is 56565753487. The reversal of 56565753481 is 18435756565.

56565753481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56565487225 + 266256 = 237835^2 + 516^2 .

It is a cyclic number.

It is not a de Polignac number, because 56565753481 - 2¹ = 56565753479 is a prime.

It is a super-2 number, since 2×56565753481² (a number of 22 digits) contains 22 as substring.

Together with 56565753479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56565753487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282876740 + 28282876741.

It is an arithmetic number, because the mean of its divisors is an integer number (28282876741).

Almost surely, 2^56565753481 is an apocalyptic number.

It is an amenable number.

56565753481 is a deficient number, since it is larger than the sum of its proper divisors (1).

56565753481 is an equidigital number, since it uses as much as digits as its factorization.

56565753481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120000, while the sum is 55.

The spelling of 56565753481 in words is "fifty-six billion, five hundred sixty-five million, seven hundred fifty-three thousand, four hundred eighty-one".