56503154317 has 2 divisors, whose sum is σ = 56503154318. Its totient is φ = 56503154316.

The previous prime is 56503154297. The next prime is 56503154339. The reversal of 56503154317 is 71345130565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47970198441 + 8532955876 = 219021^2 + 92374^2 .

It is a cyclic number.

It is not a de Polignac number, because 56503154317 - 2³¹ = 54355670669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56503154317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56503154377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28251577158 + 28251577159.

It is an arithmetic number, because the mean of its divisors is an integer number (28251577159).

Almost surely, 2^56503154317 is an apocalyptic number.

It is an amenable number.

56503154317 is a deficient number, since it is larger than the sum of its proper divisors (1).

56503154317 is an equidigital number, since it uses as much as digits as its factorization.

56503154317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 56503154317 in words is "fifty-six billion, five hundred three million, one hundred fifty-four thousand, three hundred seventeen".