2255660 has 24 divisors (see below), whose sum is σ = 5168016. Its totient is φ = 820160.

The previous prime is 2255657. The next prime is 2255663. The reversal of 2255660 is 665522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2255657) and next prime (2255663).

It is not an unprimeable number, because it can be changed into a prime (2255663) 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, 4907 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (215334).

2^2255660 is an apocalyptic number.

2255660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255660 is an abundant number, since it is smaller than the sum of its proper divisors (2912356).

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

2255660 is a wasteful number, since it uses less digits than its factorization.

2255660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273 (or 10271 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2255660 is about 1501.8854816530. The cubic root of 2255660 is about 131.1468547146.

It can be divided in two parts, 225 and 5660, that added together give a palindrome (5885).

The spelling of 2255660 in words is "two million, two hundred fifty-five thousand, six hundred sixty".