2665725 has 12 divisors (see below), whose sum is σ = 4407456. Its totient is φ = 1421680.

The previous prime is 2665717. The next prime is 2665727. The reversal of 2665725 is 5275662.

It is not a de Polignac number, because 2665725 - 2³ = 2665717 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17697 + ... + 17846.

It is an arithmetic number, because the mean of its divisors is an integer number (367288).

2^2665725 is an apocalyptic number.

2665725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2665725 is a deficient number, since it is larger than the sum of its proper divisors (1741731).

2665725 is a wasteful number, since it uses less digits than its factorization.

2665725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35556 (or 35551 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 2665725 is about 1632.7048110421. The cubic root of 2665725 is about 138.6559300684.

The spelling of 2665725 in words is "two million, six hundred sixty-five thousand, seven hundred twenty-five".