256060277 has 16 divisors (see below), whose sum is σ = 286129152. Its totient is φ = 227153520.

The previous prime is 256060223. The next prime is 256060297. The reversal of 256060277 is 772060652.

It is a happy number.

It is not a de Polignac number, because 256060277 - 2²⁴ = 239283061 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 (256060297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269918 + ... + 270864.

It is an arithmetic number, because the mean of its divisors is an integer number (17883072).

Almost surely, 2^256060277 is an apocalyptic number.

It is an amenable number.

256060277 is a deficient number, since it is larger than the sum of its proper divisors (30068875).

256060277 is a wasteful number, since it uses less digits than its factorization.

256060277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 256060277 is about 16001.8835453830. The cubic root of 256060277 is about 635.0102521750.

The spelling of 256060277 in words is "two hundred fifty-six million, sixty thousand, two hundred seventy-seven".