2585090 has 24 divisors (see below), whose sum is σ = 4825980. Its totient is φ = 996960.

The previous prime is 2585081. The next prime is 2585111. The reversal of 2585090 is 905852.

It can be written as a sum of positive squares in 2 ways, for example, as 2307361 + 277729 = 1519^2 + 527^2 .

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9476 + ... + 9744.

2^2585090 is an apocalyptic number.

2585090 is a deficient number, since it is larger than the sum of its proper divisors (2240890).

2585090 is a wasteful number, since it uses less digits than its factorization.

2585090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2585090 is about 1607.8215075064. The cubic root of 2585090 is about 137.2435329505.

The spelling of 2585090 in words is "two million, five hundred eighty-five thousand, ninety".