505020265 has 8 divisors (see below), whose sum is σ = 612834120. Its totient is φ = 399476352.

The previous prime is 505020169. The next prime is 505020317. The reversal of 505020265 is 562020505.

It can be written as a sum of positive squares in 4 ways, for example, as 71048041 + 433972224 = 8429^2 + 20832^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 505020265 - 2⁷ = 505020137 is a prime.

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, 566994 + ... + 567883.

It is an arithmetic number, because the mean of its divisors is an integer number (76604265).

Almost surely, 2^505020265 is an apocalyptic number.

It is an amenable number.

505020265 is a deficient number, since it is larger than the sum of its proper divisors (107813855).

505020265 is a wasteful number, since it uses less digits than its factorization.

505020265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134971.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 505020265 is about 22472.6559400530. The cubic root of 505020265 is about 796.3480760351.

The spelling of 505020265 in words is "five hundred five million, twenty thousand, two hundred sixty-five".