355220655 has 8 divisors (see below), whose sum is σ = 568353072. Its totient is φ = 189451008.

The previous prime is 355220653. The next prime is 355220659. The reversal of 355220655 is 556022553.

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

It is not a de Polignac number, because 355220655 - 2¹ = 355220653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355220653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11840674 + ... + 11840703.

It is an arithmetic number, because the mean of its divisors is an integer number (71044134).

Almost surely, 2^355220655 is an apocalyptic number.

355220655 is a deficient number, since it is larger than the sum of its proper divisors (213132417).

355220655 is a wasteful number, since it uses less digits than its factorization.

355220655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23681385.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 355220655 is about 18847.2983475086. The cubic root of 355220655 is about 708.2165481588.

The spelling of 355220655 in words is "three hundred fifty-five million, two hundred twenty thousand, six hundred fifty-five".