2550985 has 16 divisors (see below), whose sum is σ = 3223440. Its totient is φ = 1935360.

The previous prime is 2550973. The next prime is 2550991. The reversal of 2550985 is 5890552.

It can be written as a sum of positive squares in 8 ways, for example, as 29241 + 2521744 = 171^2 + 1588^2 .

It is not a de Polignac number, because 2550985 - 2⁷ = 2550857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2550985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10465 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (201465).

2^2550985 is an apocalyptic number.

It is an amenable number.

2550985 is a deficient number, since it is larger than the sum of its proper divisors (672455).

2550985 is a wasteful number, since it uses less digits than its factorization.

2550985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 2550985 is about 1597.1803279530. The cubic root of 2550985 is about 136.6373094455.

The spelling of 2550985 in words is "two million, five hundred fifty thousand, nine hundred eighty-five".