2558873 has 4 divisors (see below), whose sum is σ = 2647140. Its totient is φ = 2470608.

The previous prime is 2558861. The next prime is 2558879. The reversal of 2558873 is 3788552.

2558873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1194649 + 1364224 = 1093^2 + 1168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558873 - 2¹⁸ = 2296729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2558879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44090 + ... + 44147.

It is an arithmetic number, because the mean of its divisors is an integer number (661785).

2^2558873 is an apocalyptic number.

It is an amenable number.

2558873 is a deficient number, since it is larger than the sum of its proper divisors (88267).

2558873 is an equidigital number, since it uses as much as digits as its factorization.

2558873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88266.

The product of its digits is 67200, while the sum is 38.

The square root of 2558873 is about 1599.6477737302. The cubic root of 2558873 is about 136.7779983825. Note that the first 3 decimals are identical.

The spelling of 2558873 in words is "two million, five hundred fifty-eight thousand, eight hundred seventy-three".