256055755 has 16 divisors (see below), whose sum is σ = 316562400. Its totient is φ = 198713088.

The previous prime is 256055731. The next prime is 256055771. The reversal of 256055755 is 557550652.

It is a cyclic number.

It is not a de Polignac number, because 256055755 - 2¹³ = 256047563 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28039 + ... + 36031.

It is an arithmetic number, because the mean of its divisors is an integer number (19785150).

Almost surely, 2^256055755 is an apocalyptic number.

256055755 is a deficient number, since it is larger than the sum of its proper divisors (60506645).

256055755 is a wasteful number, since it uses less digits than its factorization.

256055755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190.

The product of its (nonzero) digits is 262500, while the sum is 40.

The square root of 256055755 is about 16001.7422488928. The cubic root of 256055755 is about 635.0065140795.

The spelling of 256055755 in words is "two hundred fifty-six million, fifty-five thousand, seven hundred fifty-five".