255521055 has 8 divisors (see below), whose sum is σ = 408833712. Its totient is φ = 136277888.

The previous prime is 255521051. The next prime is 255521083. The reversal of 255521055 is 550125552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255521055 - 2² = 255521051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255521051) 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, 8517354 + ... + 8517383.

It is an arithmetic number, because the mean of its divisors is an integer number (51104214).

Almost surely, 2^255521055 is an apocalyptic number.

255521055 is a deficient number, since it is larger than the sum of its proper divisors (153312657).

255521055 is a wasteful number, since it uses less digits than its factorization.

255521055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17034745.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 255521055 is about 15985.0259618181. The cubic root of 255521055 is about 634.5641955688.

The spelling of 255521055 in words is "two hundred fifty-five million, five hundred twenty-one thousand, fifty-five".