56729181583 has 2 divisors, whose sum is σ = 56729181584. Its totient is φ = 56729181582.

The previous prime is 56729181533. The next prime is 56729181617. The reversal of 56729181583 is 38518192765.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56729181583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56729181503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28364590791 + 28364590792.

It is an arithmetic number, because the mean of its divisors is an integer number (28364590792).

Almost surely, 2^56729181583 is an apocalyptic number.

56729181583 is a deficient number, since it is larger than the sum of its proper divisors (1).

56729181583 is an equidigital number, since it uses as much as digits as its factorization.

56729181583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The spelling of 56729181583 in words is "fifty-six billion, seven hundred twenty-nine million, one hundred eighty-one thousand, five hundred eighty-three".