256077534 has 8 divisors (see below), whose sum is σ = 512155080. Its totient is φ = 85359176.

The previous prime is 256077529. The next prime is 256077571. The reversal of 256077534 is 435770652.

256077534 is digitally balanced in base 3, 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.

256077534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 256077492 and 256077501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21339789 + ... + 21339800.

It is an arithmetic number, because the mean of its divisors is an integer number (64019385).

Almost surely, 2^256077534 is an apocalyptic number.

256077534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256077534 is a wasteful number, since it uses less digits than its factorization.

256077534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42679594.

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 256077534 is about 16002.4227540707. The cubic root of 256077534 is about 635.0245172091.

The spelling of 256077534 in words is "two hundred fifty-six million, seventy-seven thousand, five hundred thirty-four".