2580855 has 32 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 1247232.

The previous prime is 2580847. The next prime is 2580857. The reversal of 2580855 is 5580852.

It is not a de Polignac number, because 2580855 - 2³ = 2580847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580857) 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 31 ways as a sum of consecutive naturals, for example, 7221 + ... + 7569.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^2580855 is an apocalyptic number.

2580855 is a deficient number, since it is larger than the sum of its proper divisors (1955145).

2580855 is a wasteful number, since it uses less digits than its factorization.

2580855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 2580855 is about 1606.5039682491. The cubic root of 2580855 is about 137.1685460001.

The spelling of 2580855 in words is "two million, five hundred eighty thousand, eight hundred fifty-five".