255735065 has 4 divisors (see below), whose sum is σ = 306882084. Its totient is φ = 204588048.

The previous prime is 255735013. The next prime is 255735071. The reversal of 255735065 is 560537552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64770304 + 190964761 = 8048^2 + 13819^2 .

It is a cyclic number.

It is not a de Polignac number, because 255735065 - 2²⁰ = 254686489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25573502 + ... + 25573511.

It is an arithmetic number, because the mean of its divisors is an integer number (76720521).

Almost surely, 2^255735065 is an apocalyptic number.

It is an amenable number.

255735065 is a deficient number, since it is larger than the sum of its proper divisors (51147019).

255735065 is an equidigital number, since it uses as much as digits as its factorization.

255735065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51147018.

The product of its (nonzero) digits is 157500, while the sum is 38.

The square root of 255735065 is about 15991.7186380952. The cubic root of 255735065 is about 634.7413045060.

The spelling of 255735065 in words is "two hundred fifty-five million, seven hundred thirty-five thousand, sixty-five".