2665653 has 8 divisors (see below), whose sum is σ = 3566688. Its totient is φ = 1770864.

The previous prime is 2665627. The next prime is 2665667. The reversal of 2665653 is 3565662.

2665653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2665653 - 2⁶ = 2665589 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁶ + 6⁷ + 5⁷ + 6⁷ + 5⁹ + 3⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (445836).

2^2665653 is an apocalyptic number.

It is an amenable number.

2665653 is a deficient number, since it is larger than the sum of its proper divisors (901035).

2665653 is a wasteful number, since it uses less digits than its factorization.

2665653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its digits is 32400, while the sum is 33.

The square root of 2665653 is about 1632.6827615921. The cubic root of 2665653 is about 138.6546817130.

Subtracting 2665653 from its reverse (3565662), we obtain a palindrome (900009).

The spelling of 2665653 in words is "two million, six hundred sixty-five thousand, six hundred fifty-three".