255731111302553 has 32 divisors (see below), whose sum is σ = 278129125840896. Its totient is φ = 234193998624768.

The previous prime is 255731111302529. The next prime is 255731111302559. The reversal of 255731111302553 is 355203111137552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 255731111302553 - 2¹⁰ = 255731111301529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255731111302559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368712776 + ... + 369405702.

It is an arithmetic number, because the mean of its divisors is an integer number (8691535182528).

Almost surely, 2^{255731111302553} is an apocalyptic number.

It is an amenable number.

255731111302553 is a deficient number, since it is larger than the sum of its proper divisors (22398014538343).

255731111302553 is a wasteful number, since it uses less digits than its factorization.

255731111302553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694913.

The product of its (nonzero) digits is 472500, while the sum is 44.

The spelling of 255731111302553 in words is "two hundred fifty-five trillion, seven hundred thirty-one billion, one hundred eleven million, three hundred two thousand, five hundred fifty-three".