256127725 has 12 divisors (see below), whose sum is σ = 362969824. Its totient is φ = 175630320.

The previous prime is 256127713. The next prime is 256127741. The reversal of 256127725 is 527721652.

It is not a de Polignac number, because 256127725 - 2⁵ = 256127693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731619 + ... + 731968.

Almost surely, 2^256127725 is an apocalyptic number.

256127725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256127725 is a deficient number, since it is larger than the sum of its proper divisors (106842099).

256127725 is a wasteful number, since it uses less digits than its factorization.

256127725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463604 (or 1463599 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 256127725 is about 16003.9909085203. The cubic root of 256127725 is about 635.0660026047.

The spelling of 256127725 in words is "two hundred fifty-six million, one hundred twenty-seven thousand, seven hundred twenty-five".