256556127 has 16 divisors (see below), whose sum is σ = 361405440. Its totient is φ = 161623392.

The previous prime is 256556101. The next prime is 256556141. The reversal of 256556127 is 721655652.

It is not a de Polignac number, because 256556127 - 2⁶ = 256556063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256556227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27283 + ... + 35460.

It is an arithmetic number, because the mean of its divisors is an integer number (22587840).

Almost surely, 2^256556127 is an apocalyptic number.

256556127 is a deficient number, since it is larger than the sum of its proper divisors (104849313).

256556127 is a wasteful number, since it uses less digits than its factorization.

256556127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62822.

The product of its digits is 126000, while the sum is 39.

The square root of 256556127 is about 16017.3695405956. The cubic root of 256556127 is about 635.4198781317.

The spelling of 256556127 in words is "two hundred fifty-six million, five hundred fifty-six thousand, one hundred twenty-seven".