255556126560251 has 16 divisors (see below), whose sum is σ = 278991363640320. Its totient is φ = 232154710392480.

The previous prime is 255556126560209. The next prime is 255556126560277. The reversal of 255556126560251 is 152065621655552.

It is a cyclic number.

It is not a de Polignac number, because 255556126560251 - 2¹⁸ = 255556126298107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255556126520251) 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, 515571905 + ... + 516067341.

It is an arithmetic number, because the mean of its divisors is an integer number (17436960227520).

Almost surely, 2^{255556126560251} is an apocalyptic number.

255556126560251 is a deficient number, since it is larger than the sum of its proper divisors (23435237080069).

255556126560251 is a wasteful number, since it uses less digits than its factorization.

255556126560251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529474.

The product of its (nonzero) digits is 27000000, while the sum is 56.

The spelling of 255556126560251 in words is "two hundred fifty-five trillion, five hundred fifty-six billion, one hundred twenty-six million, five hundred sixty thousand, two hundred fifty-one".