2255488 has 32 divisors (see below), whose sum is σ = 4577760. Its totient is φ = 1106688.

The previous prime is 2255459. The next prime is 2255489. The reversal of 2255488 is 8845522.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2255488² = 10174452236288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2255489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8445 + ... + 8707.

It is an arithmetic number, because the mean of its divisors is an integer number (143055).

2^2255488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288880).

2255488 is an abundant number, since it is smaller than the sum of its proper divisors (2322272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2255488 is an equidigital number, since it uses as much as digits as its factorization.

2255488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 332 counting only the distinct ones).

The product of its digits is 25600, while the sum is 34.

The square root of 2255488 is about 1501.8282192048. The cubic root of 2255488 is about 131.1435211992.

Adding to 2255488 its sum of digits (34), we get a palindrome (2255522).

The spelling of 2255488 in words is "two million, two hundred fifty-five thousand, four hundred eighty-eight".