56305256503 has 2 divisors, whose sum is σ = 56305256504. Its totient is φ = 56305256502.

The previous prime is 56305256473. The next prime is 56305256509. The reversal of 56305256503 is 30565250365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56305256503 - 2³³ = 47715321911 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56305256509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28152628251 + 28152628252.

It is an arithmetic number, because the mean of its divisors is an integer number (28152628252).

Almost surely, 2^56305256503 is an apocalyptic number.

56305256503 is a deficient number, since it is larger than the sum of its proper divisors (1).

56305256503 is an equidigital number, since it uses as much as digits as its factorization.

56305256503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 40.

The spelling of 56305256503 in words is "fifty-six billion, three hundred five million, two hundred fifty-six thousand, five hundred three".