255028005 has 24 divisors (see below), whose sum is σ = 445969368. Its totient is φ = 134808576.

The previous prime is 255028003. The next prime is 255028021. The reversal of 255028005 is 500820552.

It can be written as a sum of positive squares in 4 ways, for example, as 19044 + 255008961 = 138^2 + 15969^2 .

It is not a de Polignac number, because 255028005 - 2¹ = 255028003 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 255028005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255028003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19992 + ... + 30161.

It is an arithmetic number, because the mean of its divisors is an integer number (18582057).

Almost surely, 2^255028005 is an apocalyptic number.

It is an amenable number.

255028005 is a deficient number, since it is larger than the sum of its proper divisors (190941363).

255028005 is a wasteful number, since it uses less digits than its factorization.

255028005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50277 (or 50274 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 255028005 is about 15969.5962691610. The cubic root of 255028005 is about 634.1557839144.

Adding to 255028005 its reverse (500820552), we get a palindrome (755848557).

The spelling of 255028005 in words is "two hundred fifty-five million, twenty-eight thousand, five".