2855825789 has 2 divisors, whose sum is σ = 2855825790. Its totient is φ = 2855825788.

The previous prime is 2855825729. The next prime is 2855825831. The reversal of 2855825789 is 9875285582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2212949764 + 642876025 = 47042^2 + 25355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2855825789 - 2¹² = 2855821693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2855825729) 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, 1427912894 + 1427912895.

It is an arithmetic number, because the mean of its divisors is an integer number (1427912895).

Almost surely, 2^2855825789 is an apocalyptic number.

It is an amenable number.

2855825789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855825789 is an equidigital number, since it uses as much as digits as its factorization.

2855825789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128000, while the sum is 59.

The square root of 2855825789 is about 53439.9269179890. The cubic root of 2855825789 is about 1418.7653403763.

The spelling of 2855825789 in words is "two billion, eight hundred fifty-five million, eight hundred twenty-five thousand, seven hundred eighty-nine".