255644225 has 24 divisors (see below), whose sum is σ = 326041632. Its totient is φ = 198723200.

The previous prime is 255644203. The next prime is 255644243. The reversal of 255644225 is 522446552.

255644225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255644225 - 2⁶ = 255644161 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453794 + ... + 454356.

It is an arithmetic number, because the mean of its divisors is an integer number (13585068).

Almost surely, 2^255644225 is an apocalyptic number.

255644225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255644225 is a deficient number, since it is larger than the sum of its proper divisors (70397407).

255644225 is a wasteful number, since it uses less digits than its factorization.

255644225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1052 counting only the distinct ones).

The product of its digits is 96000, while the sum is 35.

The square root of 255644225 is about 15988.8781657751. The cubic root of 255644225 is about 634.6661398317. Note that the first 3 decimals are identical.

The spelling of 255644225 in words is "two hundred fifty-five million, six hundred forty-four thousand, two hundred twenty-five".