256954555364 has 24 divisors (see below), whose sum is σ = 487125971640. Its totient is φ = 118594406112.

The previous prime is 256954555349. The next prime is 256954555397. The reversal of 256954555364 is 463555459652.

It can be written as a sum of positive squares in 4 ways, for example, as 121935052864 + 135019502500 = 349192^2 + 367450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14610839 + ... + 14628414.

It is an arithmetic number, because the mean of its divisors is an integer number (20296915485).

Almost surely, 2^256954555364 is an apocalyptic number.

It is an amenable number.

256954555364 is a deficient number, since it is larger than the sum of its proper divisors (230171416276).

256954555364 is a wasteful number, since it uses less digits than its factorization.

256954555364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29239296 (or 29239268 counting only the distinct ones).

The product of its digits is 97200000, while the sum is 59.

The spelling of 256954555364 in words is "two hundred fifty-six billion, nine hundred fifty-four million, five hundred fifty-five thousand, three hundred sixty-four".