2573564 has 24 divisors (see below), whose sum is σ = 5201280. Its totient is φ = 1091376.

The previous prime is 2573561. The next prime is 2573591. The reversal of 2573564 is 4653752.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 7³ + 3 + 5⁹ + 6⁴ + 4⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2573564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

2^2573564 is an apocalyptic number.

It is an amenable number.

2573564 is an abundant number, since it is smaller than the sum of its proper divisors (2627716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2573564 is a wasteful number, since it uses less digits than its factorization.

2573564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 975 counting only the distinct ones).

The product of its digits is 25200, while the sum is 32.

The square root of 2573564 is about 1604.2331501375. The cubic root of 2573564 is about 137.0392556270.

The spelling of 2573564 in words is "two million, five hundred seventy-three thousand, five hundred sixty-four".