2553565 has 8 divisors (see below), whose sum is σ = 3502080. Its totient is φ = 1750992.

The previous prime is 2553559. The next prime is 2553599. The reversal of 2553565 is 5653552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2553565 - 2⁹ = 2553053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36445 + ... + 36514.

It is an arithmetic number, because the mean of its divisors is an integer number (437760).

2^2553565 is an apocalyptic number.

It is an amenable number.

2553565 is a deficient number, since it is larger than the sum of its proper divisors (948515).

2553565 is an equidigital number, since it uses as much as digits as its factorization.

2553565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72971.

The product of its digits is 22500, while the sum is 31.

The square root of 2553565 is about 1597.9877972000. The cubic root of 2553565 is about 136.6833577341.

It can be divided in two parts, 25535 and 65, that added together give a square (25600 = 160²).

The spelling of 2553565 in words is "two million, five hundred fifty-three thousand, five hundred sixty-five".