255072085 has 4 divisors (see below), whose sum is σ = 306086508. Its totient is φ = 204057664.

The previous prime is 255072079. The next prime is 255072113. The reversal of 255072085 is 580270552.

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 121022001 + 134050084 = 11001^2 + 11578^2 .

It is a cyclic number.

It is not a de Polignac number, because 255072085 - 2⁵ = 255072053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255072085.

It is a congruent 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, 25507204 + ... + 25507213.

It is an arithmetic number, because the mean of its divisors is an integer number (76521627).

Almost surely, 2^255072085 is an apocalyptic number.

It is an amenable number.

255072085 is a deficient number, since it is larger than the sum of its proper divisors (51014423).

255072085 is an equidigital number, since it uses as much as digits as its factorization.

255072085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51014422.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 255072085 is about 15970.9763320844. The cubic root of 255072085 is about 634.1923184335.

The spelling of 255072085 in words is "two hundred fifty-five million, seventy-two thousand, eighty-five".