355220955 has 24 divisors (see below), whose sum is σ = 617396208. Its totient is φ = 188934336.

The previous prime is 355220953. The next prime is 355220959. The reversal of 355220955 is 559022553.

It is not a de Polignac number, because 355220955 - 2¹ = 355220953 is a prime.

It is a super-2 number, since 2×355220955² = 252363853742224050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (355220953) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6204 + ... + 27366.

It is an arithmetic number, because the mean of its divisors is an integer number (25724842).

Almost surely, 2^355220955 is an apocalyptic number.

355220955 is a deficient number, since it is larger than the sum of its proper divisors (262175253).

355220955 is a wasteful number, since it uses less digits than its factorization.

355220955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21547 (or 21544 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 355220955 is about 18847.3063062073. The cubic root of 355220955 is about 708.2167475325.

The spelling of 355220955 in words is "three hundred fifty-five million, two hundred twenty thousand, nine hundred fifty-five".