256054816 has 24 divisors (see below), whose sum is σ = 533762460. Its totient is φ = 120496128.

The previous prime is 256054793. The next prime is 256054853. The reversal of 256054816 is 618450652.

It can be written as a sum of positive squares in 2 ways, for example, as 254083600 + 1971216 = 15940^2 + 1404^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234801 + ... + 235888.

Almost surely, 2^256054816 is an apocalyptic number.

It is an amenable number.

256054816 is an abundant number, since it is smaller than the sum of its proper divisors (277707644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256054816 is a wasteful number, since it uses less digits than its factorization.

256054816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470716 (or 470708 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 256054816 is about 16001.7129083108. The cubic root of 256054816 is about 635.0057378530.

The spelling of 256054816 in words is "two hundred fifty-six million, fifty-four thousand, eight hundred sixteen".