505445265 has 40 divisors (see below), whose sum is σ = 975764328. Its totient is φ = 248832000.

The previous prime is 505445261. The next prime is 505445267. The reversal of 505445265 is 562544505.

505445265 is a `hidden beast` number, since 5 + 0 + 544 + 52 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3640464 + 501804801 = 1908^2 + 22401^2 .

It is not a de Polignac number, because 505445265 - 2² = 505445261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505445261) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42736 + ... + 53265.

Almost surely, 2^505445265 is an apocalyptic number.

It is an amenable number.

505445265 is a deficient number, since it is larger than the sum of its proper divisors (470319063).

505445265 is a wasteful number, since it uses less digits than its factorization.

505445265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96031 (or 96022 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 505445265 is about 22482.1098876418. The cubic root of 505445265 is about 796.5714024108.

The spelling of 505445265 in words is "five hundred five million, four hundred forty-five thousand, two hundred sixty-five".