256788054 has 24 divisors (see below), whose sum is σ = 580565232. Its totient is φ = 81874320.

The previous prime is 256788047. The next prime is 256788143. The reversal of 256788054 is 450887652.

256788054 is a `hidden beast` number, since 2 + 567 + 8 + 80 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309717 + ... + 310544.

It is an arithmetic number, because the mean of its divisors is an integer number (24190218).

Almost surely, 2^256788054 is an apocalyptic number.

256788054 is an abundant number, since it is smaller than the sum of its proper divisors (323777178).

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

256788054 is a wasteful number, since it uses less digits than its factorization.

256788054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620292 (or 620289 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 256788054 is about 16024.6077643105. The cubic root of 256788054 is about 635.6112938689.

The spelling of 256788054 in words is "two hundred fifty-six million, seven hundred eighty-eight thousand, fifty-four".