2863255 has 4 divisors (see below), whose sum is σ = 3435912. Its totient is φ = 2290600.

The previous prime is 2863229. The next prime is 2863277. The reversal of 2863255 is 5523682.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5523682 = 2 ⋅2761841.

It is not a de Polignac number, because 2863255 - 2⁷ = 2863127 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁴ + 8⁶ + 6⁸ + 3⁸ + 2¹⁹ + 5 + 5⁸ .

It is a Duffinian number.

2863255 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286321 + ... + 286330.

It is an arithmetic number, because the mean of its divisors is an integer number (858978).

2^2863255 is an apocalyptic number.

2863255 is a deficient number, since it is larger than the sum of its proper divisors (572657).

2863255 is an equidigital number, since it uses as much as digits as its factorization.

2863255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572656.

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

The square root of 2863255 is about 1692.1155397904. The cubic root of 2863255 is about 141.9994544712. Note that the first 3 decimals are identical.

It can be divided in two parts, 286 and 3255, that multiplied together give a triangular number (930930 = T₁₃₆₄).

The spelling of 2863255 in words is "two million, eight hundred sixty-three thousand, two hundred fifty-five".