256606329 has 8 divisors (see below), whose sum is σ = 391019200. Its totient is φ = 146632176.

The previous prime is 256606307. The next prime is 256606349. The reversal of 256606329 is 923606652.

256606329 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 256606329 - 2⁷ = 256606201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (256606349) 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, 6109654 + ... + 6109695.

It is an arithmetic number, because the mean of its divisors is an integer number (48877400).

Almost surely, 2^256606329 is an apocalyptic number.

It is an amenable number.

256606329 is a deficient number, since it is larger than the sum of its proper divisors (134412871).

256606329 is a wasteful number, since it uses less digits than its factorization.

256606329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219359.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 256606329 is about 16018.9365751913. The cubic root of 256606329 is about 635.4613210038.

The spelling of 256606329 in words is "two hundred fifty-six million, six hundred six thousand, three hundred twenty-nine".