2540286585 has 12 divisors (see below), whose sum is σ = 4403163492. Its totient is φ = 1354819488.

The previous prime is 2540286583. The next prime is 2540286641. The reversal of 2540286585 is 5856820452.

It is a happy number.

2540286585 is a `hidden beast` number, since 2 + 5 + 40 + 28 + 6 + 585 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1160015481 + 1380271104 = 34059^2 + 37152^2 .

It is not a de Polignac number, because 2540286585 - 2¹ = 2540286583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 56450813 = 2540286585 / (2 + 5 + 4 + 0 + 2 + 8 + 6 + 5 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2540286585.

It is not an unprimeable number, because it can be changed into a prime (2540286583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28225362 + ... + 28225451.

It is an arithmetic number, because the mean of its divisors is an integer number (366930291).

Almost surely, 2^2540286585 is an apocalyptic number.

It is an amenable number.

2540286585 is a deficient number, since it is larger than the sum of its proper divisors (1862876907).

2540286585 is a wasteful number, since it uses less digits than its factorization.

2540286585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56450824 (or 56450821 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The square root of 2540286585 is about 50401.2557879266. The cubic root of 2540286585 is about 1364.4603026819.

The spelling of 2540286585 in words is "two billion, five hundred forty million, two hundred eighty-six thousand, five hundred eighty-five".