505666075 has 12 divisors (see below), whose sum is σ = 627306328. Its totient is φ = 404352000.

The previous prime is 505666061. The next prime is 505666081. The reversal of 505666075 is 570666505.

It is not a de Polignac number, because 505666075 - 2⁵ = 505666043 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98779 + ... + 103771.

Almost surely, 2^505666075 is an apocalyptic number.

505666075 is a deficient number, since it is larger than the sum of its proper divisors (121640253).

505666075 is a wasteful number, since it uses less digits than its factorization.

505666075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054 (or 9049 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 505666075 is about 22487.0201449636. The cubic root of 505666075 is about 796.6873828716.

The spelling of 505666075 in words is "five hundred five million, six hundred sixty-six thousand, seventy-five".