355120255 has 16 divisors (see below), whose sum is σ = 487355904. Its totient is φ = 243344160.

The previous prime is 355120243. The next prime is 355120289. The reversal of 355120255 is 552021553.

It is not a de Polignac number, because 355120255 - 2¹⁵ = 355087487 is a prime.

It is a super-3 number, since 3×355120255³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70470 + ... + 75340.

It is an arithmetic number, because the mean of its divisors is an integer number (30459744).

Almost surely, 2^355120255 is an apocalyptic number.

355120255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

355120255 is a deficient number, since it is larger than the sum of its proper divisors (132235649).

355120255 is a wasteful number, since it uses less digits than its factorization.

355120255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 355120255 is about 18844.6346475595. The cubic root of 355120255 is about 708.1498181414.

The spelling of 355120255 in words is "three hundred fifty-five million, one hundred twenty thousand, two hundred fifty-five".