505434355 has 8 divisors (see below), whose sum is σ = 609873264. Its totient is φ = 402112800.

The previous prime is 505434353. The next prime is 505434367. The reversal of 505434355 is 553434505.

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

It is not a de Polignac number, because 505434355 - 2¹ = 505434353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505434355.

It is not an unprimeable number, because it can be changed into a prime (505434353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278341 + ... + 280150.

It is an arithmetic number, because the mean of its divisors is an integer number (76234158).

Almost surely, 2^505434355 is an apocalyptic number.

505434355 is a deficient number, since it is larger than the sum of its proper divisors (104438909).

505434355 is a wasteful number, since it uses less digits than its factorization.

505434355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558677.

The product of its (nonzero) digits is 90000, while the sum is 34.

The square root of 505434355 is about 22481.8672489631. The cubic root of 505434355 is about 796.5656710572.

The spelling of 505434355 in words is "five hundred five million, four hundred thirty-four thousand, three hundred fifty-five".