2555706 has 16 divisors (see below), whose sum is σ = 5140224. Its totient is φ = 847104.

The previous prime is 2555699. The next prime is 2555711. The reversal of 2555706 is 6075552.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 5³ + 5⁷ + 5⁹ + 7 + 0 + 6² .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (321264).

2^2555706 is an apocalyptic number.

2555706 is an abundant number, since it is smaller than the sum of its proper divisors (2584518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555706 is a wasteful number, since it uses less digits than its factorization.

2555706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 2555706 is about 1598.6575618312. The cubic root of 2555706 is about 136.7215471308.

The spelling of 2555706 in words is "two million, five hundred fifty-five thousand, seven hundred six".