2572565 has 4 divisors (see below), whose sum is σ = 3087084. Its totient is φ = 2058048.

The previous prime is 2572529. The next prime is 2572589. The reversal of 2572565 is 5652752.

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 1787569 + 784996 = 1337^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2572565 - 2¹² = 2568469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257252 + ... + 257261.

It is an arithmetic number, because the mean of its divisors is an integer number (771771).

2^2572565 is an apocalyptic number.

It is an amenable number.

2572565 is a deficient number, since it is larger than the sum of its proper divisors (514519).

2572565 is an equidigital number, since it uses as much as digits as its factorization.

2572565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514518.

The product of its digits is 21000, while the sum is 32.

The square root of 2572565 is about 1603.9217561964. The cubic root of 2572565 is about 137.0215214738.

The spelling of 2572565 in words is "two million, five hundred seventy-two thousand, five hundred sixty-five".