2555790 has 16 divisors (see below), whose sum is σ = 6133968. Its totient is φ = 681536.

The previous prime is 2555779. The next prime is 2555809. The reversal of 2555790 is 975552.

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, 42567 + ... + 42626.

It is an arithmetic number, because the mean of its divisors is an integer number (383373).

2^2555790 is an apocalyptic number.

2555790 is an abundant number, since it is smaller than the sum of its proper divisors (3578178).

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

2555790 is a wasteful number, since it uses less digits than its factorization.

2555790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85203.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 2555790 is about 1598.6838336582. The cubic root of 2555790 is about 136.7230450188.

The spelling of 2555790 in words is "two million, five hundred fifty-five thousand, seven hundred ninety".