355040505 has 12 divisors (see below), whose sum is σ = 615403620. Its totient is φ = 189354912.

The previous prime is 355040503. The next prime is 355040509. The reversal of 355040505 is 505040553.

It can be written as a sum of positive squares in 2 ways, for example, as 136118889 + 218921616 = 11667^2 + 14796^2 .

It is not a de Polignac number, because 355040505 - 2¹ = 355040503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (355040501) 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 11 ways as a sum of consecutive naturals, for example, 3944850 + ... + 3944939.

It is an arithmetic number, because the mean of its divisors is an integer number (51283635).

Almost surely, 2^355040505 is an apocalyptic number.

It is an amenable number.

355040505 is a deficient number, since it is larger than the sum of its proper divisors (260363115).

355040505 is a wasteful number, since it uses less digits than its factorization.

355040505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7889800 (or 7889797 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 355040505 is about 18842.5185418510. The cubic root of 355040505 is about 708.0968040095.

The spelling of 355040505 in words is "three hundred fifty-five million, forty thousand, five hundred five".