505853885 has 8 divisors (see below), whose sum is σ = 607274496. Its totient is φ = 404516560.

The previous prime is 505853857. The next prime is 505853893. The reversal of 505853885 is 588358505.

It is a happy number.

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

It is not a de Polignac number, because 505853885 - 2¹⁰ = 505852861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 6569 + ... + 32478.

It is an arithmetic number, because the mean of its divisors is an integer number (75909312).

Almost surely, 2^505853885 is an apocalyptic number.

It is an amenable number.

505853885 is a deficient number, since it is larger than the sum of its proper divisors (101420611).

505853885 is a wasteful number, since it uses less digits than its factorization.

505853885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41643.

The product of its (nonzero) digits is 960000, while the sum is 47.

The square root of 505853885 is about 22491.1957218819. The cubic root of 505853885 is about 796.7860035123.

The spelling of 505853885 in words is "five hundred five million, eight hundred fifty-three thousand, eight hundred eighty-five".