2585007811 has 16 divisors (see below), whose sum is σ = 2818065600. Its totient is φ = 2361553920.

The previous prime is 2585007793. The next prime is 2585007827. The reversal of 2585007811 is 1187005852.

It is a cyclic number.

It is not a de Polignac number, because 2585007811 - 2⁷ = 2585007683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585007851) 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 in 15 ways as a sum of consecutive naturals, for example, 129385 + ... + 148021.

It is an arithmetic number, because the mean of its divisors is an integer number (176129100).

Almost surely, 2^2585007811 is an apocalyptic number.

2585007811 is a deficient number, since it is larger than the sum of its proper divisors (233057789).

2585007811 is a wasteful number, since it uses less digits than its factorization.

2585007811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18894.

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 2585007811 is about 50842.9720905456. The cubic root of 2585007811 is about 1372.4207845208.

The spelling of 2585007811 in words is "two billion, five hundred eighty-five million, seven thousand, eight hundred eleven".