56077054909 has 2 divisors, whose sum is σ = 56077054910. Its totient is φ = 56077054908.

The previous prime is 56077054907. The next prime is 56077054933. The reversal of 56077054909 is 90945077065.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33241311684 + 22835743225 = 182322^2 + 151115^2 .

It is a cyclic number.

It is not a de Polignac number, because 56077054909 - 2¹ = 56077054907 is a prime.

Together with 56077054907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56077054903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28038527454 + 28038527455.

It is an arithmetic number, because the mean of its divisors is an integer number (28038527455).

Almost surely, 2^56077054909 is an apocalyptic number.

It is an amenable number.

56077054909 is a deficient number, since it is larger than the sum of its proper divisors (1).

56077054909 is an equidigital number, since it uses as much as digits as its factorization.

56077054909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 56077054909 in words is "fifty-six billion, seventy-seven million, fifty-four thousand, nine hundred nine".