505936265 has 4 divisors (see below), whose sum is σ = 607123524. Its totient is φ = 404749008.

The previous prime is 505936259. The next prime is 505936283. The reversal of 505936265 is 562639505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562639505 = 5 ⋅112527901.

It can be written as a sum of positive squares in 2 ways, for example, as 73753744 + 432182521 = 8588^2 + 20789^2 .

It is a cyclic number.

It is not a de Polignac number, because 505936265 - 2²⁰ = 504887689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50593622 + ... + 50593631.

It is an arithmetic number, because the mean of its divisors is an integer number (151780881).

Almost surely, 2^505936265 is an apocalyptic number.

It is an amenable number.

505936265 is a deficient number, since it is larger than the sum of its proper divisors (101187259).

505936265 is a wasteful number, since it uses less digits than its factorization.

505936265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101187258.

The product of its (nonzero) digits is 243000, while the sum is 41.

The square root of 505936265 is about 22493.0270306155. The cubic root of 505936265 is about 796.8292542546.

The spelling of 505936265 in words is "five hundred five million, nine hundred thirty-six thousand, two hundred sixty-five".