56779529 has 2 divisors, whose sum is σ = 56779530. Its totient is φ = 56779528.

The previous prime is 56779523. The next prime is 56779561. The reversal of 56779529 is 92597765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47293129 + 9486400 = 6877^2 + 3080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56779529 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56779523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28389764 + 28389765.

It is an arithmetic number, because the mean of its divisors is an integer number (28389765).

Almost surely, 2^56779529 is an apocalyptic number.

It is an amenable number.

56779529 is a deficient number, since it is larger than the sum of its proper divisors (1).

56779529 is an equidigital number, since it uses as much as digits as its factorization.

56779529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 50.

The square root of 56779529 is about 7535.2192403407. The cubic root of 56779529 is about 384.3532831849.

The spelling of 56779529 in words is "fifty-six million, seven hundred seventy-nine thousand, five hundred twenty-nine".