256522415456371 has 4 divisors (see below), whose sum is σ = 256525319780272. Its totient is φ = 256519511132472.

The previous prime is 256522415456327. The next prime is 256522415456381. The reversal of 256522415456371 is 173654514225652.

256522415456371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256522415456371 - 2²⁵ = 256522381901939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256522415456381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452029460 + ... + 1452206113.

It is an arithmetic number, because the mean of its divisors is an integer number (64131329945068).

Almost surely, 2^{256522415456371} is an apocalyptic number.

256522415456371 is a deficient number, since it is larger than the sum of its proper divisors (2904323901).

256522415456371 is an equidigital number, since it uses as much as digits as its factorization.

256522415456371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904323900.

The product of its digits is 60480000, while the sum is 58.

The spelling of 256522415456371 in words is "two hundred fifty-six trillion, five hundred twenty-two billion, four hundred fifteen million, four hundred fifty-six thousand, three hundred seventy-one".