56739853213 has 2 divisors, whose sum is σ = 56739853214. Its totient is φ = 56739853212.

The previous prime is 56739853171. The next prime is 56739853231. The reversal of 56739853213 is 31235893765.

Together with next prime (56739853231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54560550724 + 2179302489 = 233582^2 + 46683^2 .

It is a cyclic number.

It is not a de Polignac number, because 56739853213 - 2¹⁷ = 56739722141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56739853613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28369926606 + 28369926607.

It is an arithmetic number, because the mean of its divisors is an integer number (28369926607).

Almost surely, 2^56739853213 is an apocalyptic number.

It is an amenable number.

56739853213 is a deficient number, since it is larger than the sum of its proper divisors (1).

56739853213 is an equidigital number, since it uses as much as digits as its factorization.

56739853213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 52.

The spelling of 56739853213 in words is "fifty-six billion, seven hundred thirty-nine million, eight hundred fifty-three thousand, two hundred thirteen".