56770829 has 2 divisors, whose sum is σ = 56770830. Its totient is φ = 56770828.

The previous prime is 56770817. The next prime is 56770849. The reversal of 56770829 is 92807765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37393225 + 19377604 = 6115^2 + 4402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56770829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56770829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56770849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28385414 + 28385415.

It is an arithmetic number, because the mean of its divisors is an integer number (28385415).

Almost surely, 2^56770829 is an apocalyptic number.

It is an amenable number.

56770829 is a deficient number, since it is larger than the sum of its proper divisors (1).

56770829 is an equidigital number, since it uses as much as digits as its factorization.

56770829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 56770829 is about 7534.6419291165. The cubic root of 56770829 is about 384.3336514360. Note that the first 3 decimals are identical.

The spelling of 56770829 in words is "fifty-six million, seven hundred seventy thousand, eight hundred twenty-nine".