2665573 has 4 divisors (see below), whose sum is σ = 2669920. Its totient is φ = 2661228.

The previous prime is 2665547. The next prime is 2665589. The reversal of 2665573 is 3755662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2665573 - 2¹³ = 2657381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665513) 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, 1065 + ... + 2542.

It is an arithmetic number, because the mean of its divisors is an integer number (667480).

2^2665573 is an apocalyptic number.

It is an amenable number.

2665573 is a deficient number, since it is larger than the sum of its proper divisors (4347).

2665573 is an equidigital number, since it uses as much as digits as its factorization.

2665573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346.

The product of its digits is 37800, while the sum is 34.

The square root of 2665573 is about 1632.6582618540. The cubic root of 2665573 is about 138.6532946250.

The spelling of 2665573 in words is "two million, six hundred sixty-five thousand, five hundred seventy-three".