2558939 has 4 divisors (see below), whose sum is σ = 2693640. Its totient is φ = 2424240.

The previous prime is 2558929. The next prime is 2558951. The reversal of 2558939 is 9398552.

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

It is a cyclic number.

It is not a de Polignac number, because 2558939 - 2⁸ = 2558683 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 5² + 5⁹ + 8² + 9⁴ + 3⁷ + 9⁶ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2558896 and 2558905.

It is not an unprimeable number, because it can be changed into a prime (2558909) 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 3 ways as a sum of consecutive naturals, for example, 67322 + ... + 67359.

It is an arithmetic number, because the mean of its divisors is an integer number (673410).

2^2558939 is an apocalyptic number.

2558939 is a deficient number, since it is larger than the sum of its proper divisors (134701).

2558939 is a wasteful number, since it uses less digits than its factorization.

2558939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134700.

The product of its digits is 97200, while the sum is 41.

The square root of 2558939 is about 1599.6684031386. The cubic root of 2558939 is about 136.7791743260.

The spelling of 2558939 in words is "two million, five hundred fifty-eight thousand, nine hundred thirty-nine".