255971165 has 8 divisors (see below), whose sum is σ = 313701120. Its totient is φ = 200419792.

The previous prime is 255971147. The next prime is 255971179. The reversal of 255971165 is 561179552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255971165 is a prime.

It is a super-2 number, since 2×255971165² = 131042474622914450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544385 + ... + 544854.

It is an arithmetic number, because the mean of its divisors is an integer number (39212640).

Almost surely, 2^255971165 is an apocalyptic number.

It is an amenable number.

255971165 is a deficient number, since it is larger than the sum of its proper divisors (57729955).

255971165 is a wasteful number, since it uses less digits than its factorization.

255971165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089291.

The product of its digits is 94500, while the sum is 41.

The square root of 255971165 is about 15999.0988808745. The cubic root of 255971165 is about 634.9365799394.

It can be divided in two parts, 25597 and 1165, that added together give a palindrome (26762).

The spelling of 255971165 in words is "two hundred fifty-five million, nine hundred seventy-one thousand, one hundred sixty-five".