505016745 has 8 divisors (see below), whose sum is σ = 808026816. Its totient is φ = 269342256.

The previous prime is 505016711. The next prime is 505016747. The reversal of 505016745 is 547610505.

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

It is not a de Polignac number, because 505016745 - 2⁹ = 505016233 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505016747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16833877 + ... + 16833906.

It is an arithmetic number, because the mean of its divisors is an integer number (101003352).

Almost surely, 2^505016745 is an apocalyptic number.

It is an amenable number.

505016745 is a deficient number, since it is larger than the sum of its proper divisors (303010071).

505016745 is a wasteful number, since it uses less digits than its factorization.

505016745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33667791.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 505016745 is about 22472.5776225158. The cubic root of 505016745 is about 796.3462258441.

The spelling of 505016745 in words is "five hundred five million, sixteen thousand, seven hundred forty-five".