505155223 has 8 divisors (see below), whose sum is σ = 532488320. Its totient is φ = 477896760.

The previous prime is 505155179. The next prime is 505155229. The reversal of 505155223 is 322551505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505155223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505155191 and 505155200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505155229) 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, 4473 + ... + 32098.

It is an arithmetic number, because the mean of its divisors is an integer number (66561040).

Almost surely, 2^505155223 is an apocalyptic number.

505155223 is a deficient number, since it is larger than the sum of its proper divisors (27333097).

505155223 is a wasteful number, since it uses less digits than its factorization.

505155223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37317.

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

The square root of 505155223 is about 22475.6584553156. The cubic root of 505155223 is about 796.4190065033.

The spelling of 505155223 in words is "five hundred five million, one hundred fifty-five thousand, two hundred twenty-three".