256725275 has 6 divisors (see below), whose sum is σ = 318339372. Its totient is φ = 205380200.

The previous prime is 256725257. The next prime is 256725281. The reversal of 256725275 is 572527652.

It is not a de Polignac number, because 256725275 - 2⁸ = 256725019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5134481 + ... + 5134530.

It is an arithmetic number, because the mean of its divisors is an integer number (53056562).

Almost surely, 2^256725275 is an apocalyptic number.

256725275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256725275 is a deficient number, since it is larger than the sum of its proper divisors (61614097).

256725275 is a wasteful number, since it uses less digits than its factorization.

256725275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10269021 (or 10269016 counting only the distinct ones).

The product of its digits is 294000, while the sum is 41.

The square root of 256725275 is about 16022.6488134765. The cubic root of 256725275 is about 635.5594920125.

The spelling of 256725275 in words is "two hundred fifty-six million, seven hundred twenty-five thousand, two hundred seventy-five".