2580005 has 16 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1919232.

The previous prime is 2579999. The next prime is 2580031. The reversal of 2580005 is 5000852.

2580005 = T₅₇₉ + T₅₈₀ + ... + T₅₉₃.

It is not a de Polignac number, because 2580005 - 2⁴ = 2579989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10676 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (207360).

2^2580005 is an apocalyptic number.

It is an amenable number.

2580005 is a deficient number, since it is larger than the sum of its proper divisors (737755).

2580005 is a wasteful number, since it uses less digits than its factorization.

2580005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2580005 is about 1606.2393968522. The cubic root of 2580005 is about 137.1534856077.

Adding to 2580005 its reverse (5000852), we get a palindrome (7580857).

The spelling of 2580005 in words is "two million, five hundred eighty thousand, five".