2558505 has 16 divisors (see below), whose sum is σ = 4114944. Its totient is φ = 1357440.

The previous prime is 2558503. The next prime is 2558509. The reversal of 2558505 is 5058552.

It is not a de Polignac number, because 2558505 - 2¹ = 2558503 is a prime.

2558505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2558503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912 + ... + 4518.

It is an arithmetic number, because the mean of its divisors is an integer number (257184).

2^2558505 is an apocalyptic number.

It is an amenable number.

2558505 is a deficient number, since it is larger than the sum of its proper divisors (1556439).

2558505 is a wasteful number, since it uses less digits than its factorization.

2558505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2558505 is about 1599.5327442725. The cubic root of 2558505 is about 136.7714412358.

The spelling of 2558505 in words is "two million, five hundred fifty-eight thousand, five hundred five".