255625165 has 8 divisors (see below), whose sum is σ = 309565080. Its totient is φ = 202623552.

The previous prime is 255625159. The next prime is 255625199. The reversal of 255625165 is 561526552.

It can be written as a sum of positive squares in 4 ways, for example, as 44009956 + 211615209 = 6634^2 + 14547^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 255625165 - 2³ = 255625157 is a prime.

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, 233974 + ... + 235063.

It is an arithmetic number, because the mean of its divisors is an integer number (38695635).

Almost surely, 2^255625165 is an apocalyptic number.

It is an amenable number.

255625165 is a deficient number, since it is larger than the sum of its proper divisors (53939915).

255625165 is a wasteful number, since it uses less digits than its factorization.

255625165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469151.

The product of its digits is 90000, while the sum is 37.

The square root of 255625165 is about 15988.2821153494. The cubic root of 255625165 is about 634.6503665603.

The spelling of 255625165 in words is "two hundred fifty-five million, six hundred twenty-five thousand, one hundred sixty-five".