505600065 has 24 divisors (see below), whose sum is σ = 906595560. Its totient is φ = 260354304.

The previous prime is 505600057. The next prime is 505600171. The reversal of 505600065 is 560006505.

505600065 is a `hidden beast` number, since 50 + 5 + 600 + 0 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 139145616 + 366454449 = 11796^2 + 19143^2 .

It is not a de Polignac number, because 505600065 - 2³ = 505600057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192412 + ... + 195021.

It is an arithmetic number, because the mean of its divisors is an integer number (37774815).

Almost surely, 2^505600065 is an apocalyptic number.

It is an amenable number.

505600065 is a deficient number, since it is larger than the sum of its proper divisors (400995495).

505600065 is a wasteful number, since it uses less digits than its factorization.

505600065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387473 (or 387470 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 505600065 is about 22485.5523614609. The cubic root of 505600065 is about 796.6527146552.

The spelling of 505600065 in words is "five hundred five million, six hundred thousand, sixty-five".