256525256614145 has 8 divisors (see below), whose sum is σ = 307840493417856. Its totient is φ = 205213414970736.

The previous prime is 256525256614103. The next prime is 256525256614163. The reversal of 256525256614145 is 541416652525652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256525256614145 - 2²⁰ = 256525255565569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848623847 + ... + 848926076.

It is an arithmetic number, because the mean of its divisors is an integer number (38480061677232).

Almost surely, 2^{256525256614145} is an apocalyptic number.

It is an amenable number.

256525256614145 is a deficient number, since it is larger than the sum of its proper divisors (51315236803711).

256525256614145 is a wasteful number, since it uses less digits than its factorization.

256525256614145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697580151.

The product of its digits is 86400000, while the sum is 59.

The spelling of 256525256614145 in words is "two hundred fifty-six trillion, five hundred twenty-five billion, two hundred fifty-six million, six hundred fourteen thousand, one hundred forty-five".