56613213829 has 2 divisors, whose sum is σ = 56613213830. Its totient is φ = 56613213828.

The previous prime is 56613213791. The next prime is 56613213871. The reversal of 56613213829 is 92831231665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56598789025 + 14424804 = 237905^2 + 3798^2 .

It is a cyclic number.

It is not a de Polignac number, because 56613213829 - 2³³ = 48023279237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56613213929) 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, 28306606914 + 28306606915.

It is an arithmetic number, because the mean of its divisors is an integer number (28306606915).

Almost surely, 2^56613213829 is an apocalyptic number.

It is an amenable number.

56613213829 is a deficient number, since it is larger than the sum of its proper divisors (1).

56613213829 is an equidigital number, since it uses as much as digits as its factorization.

56613213829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The spelling of 56613213829 in words is "fifty-six billion, six hundred thirteen million, two hundred thirteen thousand, eight hundred twenty-nine".