256546677 has 8 divisors (see below), whose sum is σ = 362183616. Its totient is φ = 160970432.

The previous prime is 256546657. The next prime is 256546679. The reversal of 256546677 is 776645652.

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 256546677 - 2¹⁵ = 256513909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256546679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2515113 + ... + 2515214.

It is an arithmetic number, because the mean of its divisors is an integer number (45272952).

Almost surely, 2^256546677 is an apocalyptic number.

It is an amenable number.

256546677 is a deficient number, since it is larger than the sum of its proper divisors (105636939).

256546677 is a wasteful number, since it uses less digits than its factorization.

256546677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030347.

The product of its digits is 2116800, while the sum is 48.

The square root of 256546677 is about 16017.0745456216. The cubic root of 256546677 is about 635.4120763411.

The spelling of 256546677 in words is "two hundred fifty-six million, five hundred forty-six thousand, six hundred seventy-seven".