2580857 has 2 divisors, whose sum is σ = 2580858. Its totient is φ = 2580856.

The previous prime is 2580847. The next prime is 2580859. The reversal of 2580857 is 7580852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493241 + 87616 = 1579^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580857 - 2⁴ = 2580841 is a prime.

Together with 2580859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2580859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290428 + 1290429.

It is an arithmetic number, because the mean of its divisors is an integer number (1290429).

2^2580857 is an apocalyptic number.

It is an amenable number.

2580857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580857 is an equidigital number, since it uses as much as digits as its factorization.

2580857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 2580857 is about 1606.5045907186. The cubic root of 2580857 is about 137.1685814324.

The spelling of 2580857 in words is "two million, five hundred eighty thousand, eight hundred fifty-seven".