255522225 has 48 divisors (see below), whose sum is σ = 485663360. Its totient is φ = 116121600.

The previous prime is 255522217. The next prime is 255522233. The reversal of 255522225 is 522225552.

It is an interprime number because it is at equal distance from previous prime (255522217) and next prime (255522233).

It is not a de Polignac number, because 255522225 - 2³ = 255522217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255522192 and 255522201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93681 + ... + 96369.

Almost surely, 2^255522225 is an apocalyptic number.

255522225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255522225 is a deficient number, since it is larger than the sum of its proper divisors (230141135).

255522225 is a wasteful number, since it uses less digits than its factorization.

255522225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 2885 counting only the distinct ones).

The product of its digits is 20000, while the sum is 30.

The square root of 255522225 is about 15985.0625585263. The cubic root of 255522225 is about 634.5651640982.

Adding to 255522225 its reverse (522225552), we get a palindrome (777747777).

The spelling of 255522225 in words is "two hundred fifty-five million, five hundred twenty-two thousand, two hundred twenty-five".