255311065 has 8 divisors (see below), whose sum is σ = 306577728. Its totient is φ = 204112560.

The previous prime is 255311057. The next prime is 255311087. The reversal of 255311065 is 560113552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255311065 - 2³ = 255311057 is a prime.

It is a super-2 number, since 2×255311065² = 130367479822868450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8397 + ... + 24106.

It is an arithmetic number, because the mean of its divisors is an integer number (38322216).

Almost surely, 2^255311065 is an apocalyptic number.

It is an amenable number.

255311065 is a deficient number, since it is larger than the sum of its proper divisors (51266663).

255311065 is a wasteful number, since it uses less digits than its factorization.

255311065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34079.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 255311065 is about 15978.4562771251. The cubic root of 255311065 is about 634.3903173277.

The spelling of 255311065 in words is "two hundred fifty-five million, three hundred eleven thousand, sixty-five".