256054853 has 2 divisors, whose sum is σ = 256054854. Its totient is φ = 256054852.

The previous prime is 256054793. The next prime is 256054871. The reversal of 256054853 is 358450652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177235969 + 78818884 = 13313^2 + 8878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256054853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256054753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128027426 + 128027427.

It is an arithmetic number, because the mean of its divisors is an integer number (128027427).

Almost surely, 2^256054853 is an apocalyptic number.

It is an amenable number.

256054853 is a deficient number, since it is larger than the sum of its proper divisors (1).

256054853 is an equidigital number, since it uses as much as digits as its factorization.

256054853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 256054853 is about 16001.7140644370. The cubic root of 256054853 is about 635.0057684391.

The spelling of 256054853 in words is "two hundred fifty-six million, fifty-four thousand, eight hundred fifty-three".