2573563 has 4 divisors (see below), whose sum is σ = 2577808. Its totient is φ = 2569320.

The previous prime is 2573561. The next prime is 2573591. The reversal of 2573563 is 3653752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2573563 - 2¹ = 2573561 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 5⁷ + 7⁴ + 3⁵ + 5⁹ + 6² + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2573561) 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 3 ways as a sum of consecutive naturals, for example, 1023 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (644452).

2^2573563 is an apocalyptic number.

2573563 is a deficient number, since it is larger than the sum of its proper divisors (4245).

2573563 is an equidigital number, since it uses as much as digits as its factorization.

2573563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244.

The product of its digits is 18900, while the sum is 31.

The square root of 2573563 is about 1604.2328384620. The cubic root of 2573563 is about 137.0392378773.

It can be divided in two parts, 2573 and 563, that added together give a square (3136 = 56²).

The spelling of 2573563 in words is "two million, five hundred seventy-three thousand, five hundred sixty-three".