255521105 has 16 divisors (see below), whose sum is σ = 350716800. Its totient is φ = 175070592.

The previous prime is 255521089. The next prime is 255521107. The reversal of 255521105 is 501125552.

It is a cyclic number.

It is not a de Polignac number, because 255521105 - 2⁴ = 255521089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255521107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57317 + ... + 61613.

It is an arithmetic number, because the mean of its divisors is an integer number (21919800).

Almost surely, 2^255521105 is an apocalyptic number.

It is an amenable number.

255521105 is a deficient number, since it is larger than the sum of its proper divisors (95195695).

255521105 is a wasteful number, since it uses less digits than its factorization.

255521105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 255521105 is about 15985.0275257817. The cubic root of 255521105 is about 634.5642369590.

Adding to 255521105 its reverse (501125552), we get a palindrome (756646657).

The spelling of 255521105 in words is "two hundred fifty-five million, five hundred twenty-one thousand, one hundred five".