505444255 has 24 divisors (see below), whose sum is σ = 649552176. Its totient is φ = 376254720.

The previous prime is 505444253. The next prime is 505444259. The reversal of 505444255 is 552444505.

It is not a de Polignac number, because 505444255 - 2¹ = 505444253 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505444255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505444253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2646210 + ... + 2646400.

It is an arithmetic number, because the mean of its divisors is an integer number (27064674).

Almost surely, 2^505444255 is an apocalyptic number.

505444255 is a deficient number, since it is larger than the sum of its proper divisors (144107921).

505444255 is a wasteful number, since it uses less digits than its factorization.

505444255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The square root of 505444255 is about 22482.0874253260. The cubic root of 505444255 is about 796.5708718306.

The spelling of 505444255 in words is "five hundred five million, four hundred forty-four thousand, two hundred fifty-five".