256060077 has 16 divisors (see below), whose sum is σ = 420201600. Its totient is φ = 135064512.

The previous prime is 256060073. The next prime is 256060099. The reversal of 256060077 is 770060652.

It is not a de Polignac number, because 256060077 - 2² = 256060073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256060073) 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, 468702 + ... + 469247.

It is an arithmetic number, because the mean of its divisors is an integer number (26262600).

Almost surely, 2^256060077 is an apocalyptic number.

It is an amenable number.

256060077 is a deficient number, since it is larger than the sum of its proper divisors (164141523).

256060077 is a wasteful number, since it uses less digits than its factorization.

256060077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937972.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 256060077 is about 16001.8772961175. The cubic root of 256060077 is about 635.0100868466.

The spelling of 256060077 in words is "two hundred fifty-six million, sixty thousand, seventy-seven".