255005005 has 4 divisors (see below), whose sum is σ = 306006012. Its totient is φ = 204004000.

The previous prime is 255004961. The next prime is 255005041. The reversal of 255005005 is 500500552.

255005005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173896969 + 81108036 = 13187^2 + 9006^2 .

It is not a de Polignac number, because 255005005 - 2⁹ = 255004493 is a prime.

It is a Duffinian number.

255005005 is a modest number, since divided by 5005 gives 255 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25500496 + ... + 25500505.

It is an arithmetic number, because the mean of its divisors is an integer number (76501503).

Almost surely, 2^255005005 is an apocalyptic number.

It is an amenable number.

255005005 is a deficient number, since it is larger than the sum of its proper divisors (51001007).

255005005 is an equidigital number, since it uses as much as digits as its factorization.

255005005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51001006.

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 255005005 is about 15968.8761345312. The cubic root of 255005005 is about 634.1367193133.

Adding to 255005005 its reverse (500500552), we get a palindrome (755505557).

The spelling of 255005005 in words is "two hundred fifty-five million, five thousand, five".