255445345 has 4 divisors (see below), whose sum is σ = 306534420. Its totient is φ = 204356272.

The previous prime is 255445331. The next prime is 255445381. The reversal of 255445345 is 543544552.

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 63872064 + 191573281 = 7992^2 + 13841^2 .

It is a cyclic number.

It is not a de Polignac number, because 255445345 - 2⁷ = 255445217 is a prime.

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, 25544530 + ... + 25544539.

It is an arithmetic number, because the mean of its divisors is an integer number (76633605).

Almost surely, 2^255445345 is an apocalyptic number.

It is an amenable number.

255445345 is a deficient number, since it is larger than the sum of its proper divisors (51089075).

255445345 is an equidigital number, since it uses as much as digits as its factorization.

255445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51089074.

The product of its digits is 240000, while the sum is 37.

The square root of 255445345 is about 15982.6576325716. The cubic root of 255445345 is about 634.5015163230.

Adding to 255445345 its reverse (543544552), we get a palindrome (798989897).

The spelling of 255445345 in words is "two hundred fifty-five million, four hundred forty-five thousand, three hundred forty-five".