505888505 has 8 divisors (see below), whose sum is σ = 611087424. Its totient is φ = 402030000.

The previous prime is 505888501. The next prime is 505888553.

505888505 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 505888505 - 2² = 505888501 is a prime.

It is a super-2 number, since 2×505888505² = 511846358982270050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505888501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334271 + ... + 335780.

It is an arithmetic number, because the mean of its divisors is an integer number (76385928).

Almost surely, 2^505888505 is an apocalyptic number.

It is an amenable number.

505888505 is a deficient number, since it is larger than the sum of its proper divisors (105198919).

505888505 is a wasteful number, since it uses less digits than its factorization.

505888505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670207.

The product of its (nonzero) digits is 320000, while the sum is 44.

The square root of 505888505 is about 22491.9653432064. The cubic root of 505888505 is about 796.8041801064.

The spelling of 505888505 in words is "five hundred five million, eight hundred eighty-eight thousand, five hundred five".