506666885 has 16 divisors (see below), whose sum is σ = 636733440. Its totient is φ = 386305920.

The previous prime is 506666879. The next prime is 506666887. The reversal of 506666885 is 588666605.

506666885 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 506666885 - 2¹⁸ = 506404741 is a prime.

It is a super-2 number, since 2×506666885² = 513422664711206450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506666887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24476 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (39795840).

Almost surely, 2^506666885 is an apocalyptic number.

It is an amenable number.

506666885 is a deficient number, since it is larger than the sum of its proper divisors (130066555).

506666885 is a wasteful number, since it uses less digits than its factorization.

506666885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The square root of 506666885 is about 22509.2622047014. The cubic root of 506666885 is about 797.2126354654.

The spelling of 506666885 in words is "five hundred six million, six hundred sixty-six thousand, eight hundred eighty-five".