256723835527 has 2 divisors, whose sum is σ = 256723835528. Its totient is φ = 256723835526.

The previous prime is 256723835507. The next prime is 256723835573. The reversal of 256723835527 is 725538327652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256723835527 - 2⁷ = 256723835399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256723835507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128361917763 + 128361917764.

It is an arithmetic number, because the mean of its divisors is an integer number (128361917764).

Almost surely, 2^256723835527 is an apocalyptic number.

256723835527 is a deficient number, since it is larger than the sum of its proper divisors (1).

256723835527 is an equidigital number, since it uses as much as digits as its factorization.

256723835527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168000, while the sum is 55.

The spelling of 256723835527 in words is "two hundred fifty-six billion, seven hundred twenty-three million, eight hundred thirty-five thousand, five hundred twenty-seven".