2665453 has 16 divisors (see below), whose sum is σ = 3280000. Its totient is φ = 2159136.

The previous prime is 2665433. The next prime is 2665459. The reversal of 2665453 is 3545662.

It is a de Polignac number, because none of the positive numbers 2^k-2665453 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665459) 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 15 ways as a sum of consecutive naturals, for example, 6313 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (205000).

2^2665453 is an apocalyptic number.

It is an amenable number.

2665453 is a deficient number, since it is larger than the sum of its proper divisors (614547).

2665453 is an equidigital number, since it uses as much as digits as its factorization.

2665453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 435 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 2665453 is about 1632.6215115574. The cubic root of 2665453 is about 138.6512139411.

The spelling of 2665453 in words is "two million, six hundred sixty-five thousand, four hundred fifty-three".