2585081 has 2 divisors, whose sum is σ = 2585082. Its totient is φ = 2585080.

The previous prime is 2585057. The next prime is 2585111. The reversal of 2585081 is 1805852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 1000000 = 1259^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2585081 - 2¹⁴ = 2568697 is a prime.

It is a super-2 number, since 2×2585081² = 13365287553122, which contains 22 as substring.

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 (2585041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292540 + 1292541.

It is an arithmetic number, because the mean of its divisors is an integer number (1292541).

2^2585081 is an apocalyptic number.

It is an amenable number.

2585081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2585081 is an equidigital number, since it uses as much as digits as its factorization.

2585081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 2585081 is about 1607.8187086858. The cubic root of 2585081 is about 137.2433736791.

The spelling of 2585081 in words is "two million, five hundred eighty-five thousand, eighty-one".