505868505 has 8 divisors (see below), whose sum is σ = 809389632. Its totient is φ = 269796528.

The previous prime is 505868453. The next prime is 505868513.

505868505 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 505868505 - 2⁸ = 505868249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16862269 + ... + 16862298.

It is an arithmetic number, because the mean of its divisors is an integer number (101173704).

Almost surely, 2^505868505 is an apocalyptic number.

It is an amenable number.

505868505 is a deficient number, since it is larger than the sum of its proper divisors (303521127).

505868505 is a wasteful number, since it uses less digits than its factorization.

505868505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33724575.

The product of its (nonzero) digits is 240000, while the sum is 42.

The square root of 505868505 is about 22491.5207356017. The cubic root of 505868505 is about 796.7936795755.

The spelling of 505868505 in words is "five hundred five million, eight hundred sixty-eight thousand, five hundred five".