256055061 has 8 divisors (see below), whose sum is σ = 344539360. Its totient is φ = 169137072.

The previous prime is 256055057. The next prime is 256055081. The reversal of 256055061 is 160550652.

256055061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256055061 - 2² = 256055057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256055081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391195 + ... + 391848.

It is an arithmetic number, because the mean of its divisors is an integer number (43067420).

Almost surely, 2^256055061 is an apocalyptic number.

It is an amenable number.

256055061 is a deficient number, since it is larger than the sum of its proper divisors (88484299).

256055061 is a wasteful number, since it uses less digits than its factorization.

256055061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783155.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 256055061 is about 16001.7205637394. The cubic root of 256055061 is about 635.0059403830.

The spelling of 256055061 in words is "two hundred fifty-six million, fifty-five thousand, sixty-one".