256680548 has 12 divisors (see below), whose sum is σ = 451449600. Its totient is φ = 127694952.

The previous prime is 256680547. The next prime is 256680553. The reversal of 256680548 is 845086652.

It is a junction number, because it is equal to n+sod(n) for n = 256680499 and 256680508.

It is not an unprimeable number, because it can be changed into a prime (256680547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160436 + ... + 162027.

It is an arithmetic number, because the mean of its divisors is an integer number (37620800).

Almost surely, 2^256680548 is an apocalyptic number.

It is an amenable number.

256680548 is a deficient number, since it is larger than the sum of its proper divisors (194769052).

256680548 is a wasteful number, since it uses less digits than its factorization.

256680548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322666 (or 322664 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 256680548 is about 16021.2530096744. The cubic root of 256680548 is about 635.5225805444.

The spelling of 256680548 in words is "two hundred fifty-six million, six hundred eighty thousand, five hundred forty-eight".