255305555255 has 4 divisors (see below), whose sum is σ = 306366666312. Its totient is φ = 204244444200.

The previous prime is 255305555243. The next prime is 255305555269. The reversal of 255305555255 is 552555503552.

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

It is not a de Polignac number, because 255305555255 - 2¹² = 255305551159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25530555521 + ... + 25530555530.

It is an arithmetic number, because the mean of its divisors is an integer number (76591666578).

Almost surely, 2^255305555255 is an apocalyptic number.

255305555255 is a deficient number, since it is larger than the sum of its proper divisors (51061111057).

255305555255 is an equidigital number, since it uses as much as digits as its factorization.

255305555255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51061111056.

The product of its (nonzero) digits is 4687500, while the sum is 47.

The spelling of 255305555255 in words is "two hundred fifty-five billion, three hundred five million, five hundred fifty-five thousand, two hundred fifty-five".