56840423053 has 2 divisors, whose sum is σ = 56840423054. Its totient is φ = 56840423052.

The previous prime is 56840422979. The next prime is 56840423099. The reversal of 56840423053 is 35032404865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56530768644 + 309654409 = 237762^2 + 17597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56840423053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56840422997 and 56840423015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56840423153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420211526 + 28420211527.

It is an arithmetic number, because the mean of its divisors is an integer number (28420211527).

Almost surely, 2^56840423053 is an apocalyptic number.

It is an amenable number.

56840423053 is a deficient number, since it is larger than the sum of its proper divisors (1).

56840423053 is an equidigital number, since it uses as much as digits as its factorization.

56840423053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 56840423053 in words is "fifty-six billion, eight hundred forty million, four hundred twenty-three thousand, fifty-three".