2253865 has 8 divisors (see below), whose sum is σ = 2737728. Its totient is φ = 1781040.

The previous prime is 2253863. The next prime is 2253871. The reversal of 2253865 is 5683522.

It is a happy number.

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

It is not a de Polignac number, because 2253865 - 2¹ = 2253863 is a prime.

It is a d-powerful number, because it can be written as 2⁶ + 2¹⁰ + 5² + 3⁹ + 8 + 6⁷ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2253863) 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, 2301 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (342216).

2^2253865 is an apocalyptic number.

It is an amenable number.

2253865 is a deficient number, since it is larger than the sum of its proper divisors (483863).

2253865 is an equidigital number, since it uses as much as digits as its factorization.

2253865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519.

The product of its digits is 14400, while the sum is 31.

The square root of 2253865 is about 1501.2877805404. The cubic root of 2253865 is about 131.1120576448.

It can be divided in two parts, 22 and 53865, that multiplied together give a triangular number (1185030 = T₁₅₃₉).

The spelling of 2253865 in words is "two million, two hundred fifty-three thousand, eight hundred sixty-five".