256225677 has 8 divisors (see below), whose sum is σ = 345959040. Its totient is φ = 168654720.

The previous prime is 256225667. The next prime is 256225721. The reversal of 256225677 is 776522652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256225677 - 2⁴ = 256225661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256225667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540324 + ... + 540797.

It is an arithmetic number, because the mean of its divisors is an integer number (43244880).

Almost surely, 2^256225677 is an apocalyptic number.

It is an amenable number.

256225677 is a deficient number, since it is larger than the sum of its proper divisors (89733363).

256225677 is a wasteful number, since it uses less digits than its factorization.

256225677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081203.

The product of its digits is 352800, while the sum is 42.

The square root of 256225677 is about 16007.0508526711. The cubic root of 256225677 is about 635.1469492716.

The spelling of 256225677 in words is "two hundred fifty-six million, two hundred twenty-five thousand, six hundred seventy-seven".