256075423085 has 8 divisors (see below), whose sum is σ = 307295623320. Its totient is φ = 204856928064.

The previous prime is 256075423069. The next prime is 256075423139. The reversal of 256075423085 is 580324570652.

It can be written as a sum of positive squares in 4 ways, for example, as 25749337156 + 230326085929 = 160466^2 + 479923^2 .

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 256075423085 - 2⁴ = 256075423069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68642 + ... + 718931.

It is an arithmetic number, because the mean of its divisors is an integer number (38411952915).

Almost surely, 2^256075423085 is an apocalyptic number.

It is an amenable number.

256075423085 is a deficient number, since it is larger than the sum of its proper divisors (51220200235).

256075423085 is an equidigital number, since it uses as much as digits as its factorization.

256075423085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852607.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 256075423085 in words is "two hundred fifty-six billion, seventy-five million, four hundred twenty-three thousand, eighty-five".