2855825729 has 2 divisors, whose sum is σ = 2855825730. Its totient is φ = 2855825728.

The previous prime is 2855825711. The next prime is 2855825789. The reversal of 2855825729 is 9275285582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2575765504 + 280060225 = 50752^2 + 16735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2855825729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2855825789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427912864 + 1427912865.

It is an arithmetic number, because the mean of its divisors is an integer number (1427912865).

Almost surely, 2^2855825729 is an apocalyptic number.

It is an amenable number.

2855825729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855825729 is an equidigital number, since it uses as much as digits as its factorization.

2855825729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032000, while the sum is 53.

The square root of 2855825729 is about 53439.9263566109. The cubic root of 2855825729 is about 1418.7653304404.

The spelling of 2855825729 in words is "two billion, eight hundred fifty-five million, eight hundred twenty-five thousand, seven hundred twenty-nine".