2255515 has 4 divisors (see below), whose sum is σ = 2706624. Its totient is φ = 1804408.

The previous prime is 2255507. The next prime is 2255549. The reversal of 2255515 is 5155522.

It is a happy number.

2255515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2255515 - 2³ = 2255507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2255515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225547 + ... + 225556.

It is an arithmetic number, because the mean of its divisors is an integer number (676656).

2^2255515 is an apocalyptic number.

2255515 is a deficient number, since it is larger than the sum of its proper divisors (451109).

2255515 is an equidigital number, since it uses as much as digits as its factorization.

2255515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451108.

The product of its digits is 2500, while the sum is 25.

The square root of 2255515 is about 1501.8372082220. The cubic root of 2255515 is about 131.1440444948.

The spelling of 2255515 in words is "two million, two hundred fifty-five thousand, five hundred fifteen".