256500535555241 has 16 divisors (see below), whose sum is σ = 275433503984640. Its totient is φ = 238412871574080.

The previous prime is 256500535555181. The next prime is 256500535555291. The reversal of 256500535555241 is 142555535005652.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256500535555241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256500535555291) 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, 1542443201 + ... + 1542609486.

It is an arithmetic number, because the mean of its divisors is an integer number (17214593999040).

Almost surely, 2^{256500535555241} is an apocalyptic number.

It is an amenable number.

256500535555241 is a deficient number, since it is larger than the sum of its proper divisors (18932968429399).

256500535555241 is a wasteful number, since it uses less digits than its factorization.

256500535555241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085052824.

The product of its (nonzero) digits is 22500000, while the sum is 53.

The spelling of 256500535555241 in words is "two hundred fifty-six trillion, five hundred billion, five hundred thirty-five million, five hundred fifty-five thousand, two hundred forty-one".