255275280305 has 4 divisors (see below), whose sum is σ = 306330336372. Its totient is φ = 204220224240.

The previous prime is 255275280287. The next prime is 255275280409. The reversal of 255275280305 is 503082572552.

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 171989360656 + 83285919649 = 414716^2 + 288593^2 .

It is not a de Polignac number, because 255275280305 - 2⁸ = 255275280049 is a prime.

It is a Duffinian 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, 25527528026 + ... + 25527528035.

It is an arithmetic number, because the mean of its divisors is an integer number (76582584093).

Almost surely, 2^255275280305 is an apocalyptic number.

It is an amenable number.

255275280305 is a deficient number, since it is larger than the sum of its proper divisors (51055056067).

255275280305 is an equidigital number, since it uses as much as digits as its factorization.

255275280305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055056066.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 255275280305 in words is "two hundred fifty-five billion, two hundred seventy-five million, two hundred eighty thousand, three hundred five".