56400063077 has 2 divisors, whose sum is σ = 56400063078. Its totient is φ = 56400063076.

The previous prime is 56400063059. The next prime is 56400063079. The reversal of 56400063077 is 77036000465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47071207681 + 9328855396 = 216959^2 + 96586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56400063077 is a prime.

Together with 56400063079, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56400063077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56400063079) 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, 28200031538 + 28200031539.

It is an arithmetic number, because the mean of its divisors is an integer number (28200031539).

Almost surely, 2^56400063077 is an apocalyptic number.

It is an amenable number.

56400063077 is a deficient number, since it is larger than the sum of its proper divisors (1).

56400063077 is an equidigital number, since it uses as much as digits as its factorization.

56400063077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 56400063077 in words is "fifty-six billion, four hundred million, sixty-three thousand, seventy-seven".