605212565 has 16 divisors (see below), whose sum is σ = 743778288. Its totient is φ = 472582656.

The previous prime is 605212507. The next prime is 605212577. The reversal of 605212565 is 565212506.

It can be written as a sum of positive squares in 8 ways, for example, as 219247249 + 385965316 = 14807^2 + 19646^2 .

It is a cyclic number.

It is not a de Polignac number, because 605212565 - 2¹² = 605208469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46409 + ... + 58001.

It is an arithmetic number, because the mean of its divisors is an integer number (46486143).

Almost surely, 2^605212565 is an apocalyptic number.

It is an amenable number.

605212565 is a deficient number, since it is larger than the sum of its proper divisors (138565723).

605212565 is a wasteful number, since it uses less digits than its factorization.

605212565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11848.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 605212565 is about 24601.0683711094. The cubic root of 605212565 is about 845.8680970502.

The spelling of 605212565 in words is "six hundred five million, two hundred twelve thousand, five hundred sixty-five".