255103045215505 has 8 divisors (see below), whose sum is σ = 324130928038632. Its totient is φ = 192077586985728.

The previous prime is 255103045215481. The next prime is 255103045215587. The reversal of 255103045215505 is 505512540301552.

It can be written as a sum of positive squares in 4 ways, for example, as 19323549972736 + 235779495242769 = 4395856^2 + 15355113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255103045215505 - 2¹⁵ = 255103045182737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500606148242 + ... + 1500606148411.

It is an arithmetic number, because the mean of its divisors is an integer number (40516366004829).

Almost surely, 2^{255103045215505} is an apocalyptic number.

It is an amenable number.

255103045215505 is a deficient number, since it is larger than the sum of its proper divisors (69027882823127).

255103045215505 is a wasteful number, since it uses less digits than its factorization.

255103045215505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001212296675.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 255103045215505 in words is "two hundred fifty-five trillion, one hundred three billion, forty-five million, two hundred fifteen thousand, five hundred five".