255356353505 has 16 divisors (see below), whose sum is σ = 334300690944. Its totient is φ = 185704817280.

The previous prime is 255356353481. The next prime is 255356353561. The reversal of 255356353505 is 505353653552.

It is not a de Polignac number, because 255356353505 - 2³² = 251061386209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255356353505.

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 15 ways as a sum of consecutive naturals, for example, 1183469 + ... + 1382501.

It is an arithmetic number, because the mean of its divisors is an integer number (20893793184).

Almost surely, 2^255356353505 is an apocalyptic number.

It is an amenable number.

255356353505 is a deficient number, since it is larger than the sum of its proper divisors (78944337439).

255356353505 is a wasteful number, since it uses less digits than its factorization.

255356353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222376.

The product of its (nonzero) digits is 5062500, while the sum is 47.

The spelling of 255356353505 in words is "two hundred fifty-five billion, three hundred fifty-six million, three hundred fifty-three thousand, five hundred five".