2253565 has 8 divisors (see below), whose sum is σ = 2770488. Its totient is φ = 1758720.

The previous prime is 2253557. The next prime is 2253599. The reversal of 2253565 is 5653522.

2253565 = 1061² + 1062².

It can be written as a sum of positive squares in 4 ways, for example, as 45369 + 2208196 = 213^2 + 1486^2 .

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

It is not a de Polignac number, because 2253565 - 2³ = 2253557 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 7 ways as a sum of consecutive naturals, for example, 5292 + ... + 5701.

It is an arithmetic number, because the mean of its divisors is an integer number (346311).

2^2253565 is an apocalyptic number.

2253565 is the 1062-nd centered square number.

It is an amenable number.

2253565 is a deficient number, since it is larger than the sum of its proper divisors (516923).

2253565 is a wasteful number, since it uses less digits than its factorization.

2253565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039.

The product of its digits is 9000, while the sum is 28.

The square root of 2253565 is about 1501.1878629938. The cubic root of 2253565 is about 131.1062401768.

The spelling of 2253565 in words is "two million, two hundred fifty-three thousand, five hundred sixty-five".