2580705 has 12 divisors (see below), whose sum is σ = 4473300. Its totient is φ = 1376352.

The previous prime is 2580703. The next prime is 2580707. The reversal of 2580705 is 5070852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2580703) and next prime (2580707).

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 1361889 = 1104^2 + 1167^2 .

It is not a de Polignac number, because 2580705 - 2¹ = 2580703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2580701) 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, 28630 + ... + 28719.

It is an arithmetic number, because the mean of its divisors is an integer number (372775).

2^2580705 is an apocalyptic number.

It is an amenable number.

2580705 is a deficient number, since it is larger than the sum of its proper divisors (1892595).

2580705 is a wasteful number, since it uses less digits than its factorization.

2580705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57360 (or 57357 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2580705 is about 1606.4572823452. The cubic root of 2580705 is about 137.1658885241.

The spelling of 2580705 in words is "two million, five hundred eighty thousand, seven hundred five".