505252768 has 24 divisors (see below), whose sum is σ = 1001881440. Its totient is φ = 250806720.

The previous prime is 505252757. The next prime is 505252771. The reversal of 505252768 is 867252505.

It is a self number, because there is not a number n which added to its sum of digits gives 505252768.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52348 + ... + 61243.

It is an arithmetic number, because the mean of its divisors is an integer number (41745060).

Almost surely, 2^505252768 is an apocalyptic number.

It is an amenable number.

505252768 is a deficient number, since it is larger than the sum of its proper divisors (496628672).

505252768 is a wasteful number, since it uses less digits than its factorization.

505252768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113740 (or 113732 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 505252768 is about 22477.8283648577. The cubic root of 505252768 is about 796.4702657919.

The spelling of 505252768 in words is "five hundred five million, two hundred fifty-two thousand, seven hundred sixty-eight".