255442655 has 12 divisors (see below), whose sum is σ = 331925400. Its totient is φ = 188633952.

The previous prime is 255442651. The next prime is 255442673. The reversal of 255442655 is 556244552.

It is a happy number.

It is not a de Polignac number, because 255442655 - 2² = 255442651 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255442651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150305 + ... + 151994.

It is an arithmetic number, because the mean of its divisors is an integer number (27660450).

Almost surely, 2^255442655 is an apocalyptic number.

255442655 is a deficient number, since it is larger than the sum of its proper divisors (76482745).

255442655 is a wasteful number, since it uses less digits than its factorization.

255442655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302330 (or 302317 counting only the distinct ones).

The product of its digits is 240000, while the sum is 38.

The square root of 255442655 is about 15982.5734786360. The cubic root of 255442655 is about 634.4992890820.

The spelling of 255442655 in words is "two hundred fifty-five million, four hundred forty-two thousand, six hundred fifty-five".