2755985 has 4 divisors (see below), whose sum is σ = 3307188. Its totient is φ = 2204784.

The previous prime is 2755981. The next prime is 2755997. The reversal of 2755985 is 5895572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2062096 + 693889 = 1436^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 2755985 - 2² = 2755981 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7² + 5² + 5⁶ + 9³ + 8⁶ + 5⁹ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755981) 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, 275594 + ... + 275603.

It is an arithmetic number, because the mean of its divisors is an integer number (826797).

2^2755985 is an apocalyptic number.

It is an amenable number.

2755985 is a deficient number, since it is larger than the sum of its proper divisors (551203).

2755985 is an equidigital number, since it uses as much as digits as its factorization.

2755985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551202.

The product of its digits is 126000, while the sum is 41.

The square root of 2755985 is about 1660.1159598052. The cubic root of 2755985 is about 140.2035304968.

The spelling of 2755985 in words is "two million, seven hundred fifty-five thousand, nine hundred eighty-five".