2558906 has 8 divisors (see below), whose sum is σ = 4386720. Its totient is φ = 1096668.

The previous prime is 2558879. The next prime is 2558909. The reversal of 2558906 is 6098552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2558909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91376 + ... + 91403.

It is an arithmetic number, because the mean of its divisors is an integer number (548340).

2^2558906 is an apocalyptic number.

2558906 is a deficient number, since it is larger than the sum of its proper divisors (1827814).

2558906 is a wasteful number, since it uses less digits than its factorization.

2558906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182788.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2558906 is about 1599.6580884677. The cubic root of 2558906 is about 136.7785863568.

The spelling of 2558906 in words is "two million, five hundred fifty-eight thousand, nine hundred six".