256673595 has 16 divisors (see below), whose sum is σ = 412810272. Its totient is φ = 136181760.

The previous prime is 256673563. The next prime is 256673611. The reversal of 256673595 is 595376652.

It is not a de Polignac number, because 256673595 - 2⁵ = 256673563 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41436 + ... + 47225.

It is an arithmetic number, because the mean of its divisors is an integer number (25800642).

Almost surely, 2^256673595 is an apocalyptic number.

256673595 is a deficient number, since it is larger than the sum of its proper divisors (156136677).

256673595 is a wasteful number, since it uses less digits than its factorization.

256673595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88862.

The product of its digits is 1701000, while the sum is 48.

The square root of 256673595 is about 16021.0360151895. The cubic root of 256673595 is about 635.5168421166.

The spelling of 256673595 in words is "two hundred fifty-six million, six hundred seventy-three thousand, five hundred ninety-five".