263217125772255 has 16 divisors (see below), whose sum is σ = 421147892431584. Its totient is φ = 140382303346560.

The previous prime is 263217125772229. The next prime is 263217125772287. The reversal of 263217125772255 is 552277521712362.

It is not a de Polignac number, because 263217125772255 - 2¹⁸ = 263217125510111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263217125772195 and 263217125772204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3665245 + ... + 23235065.

It is an arithmetic number, because the mean of its divisors is an integer number (26321743276974).

Almost surely, 2^{263217125772255} is an apocalyptic number.

263217125772255 is a deficient number, since it is larger than the sum of its proper divisors (157930766659329).

263217125772255 is a wasteful number, since it uses less digits than its factorization.

263217125772255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466506.

The product of its digits is 24696000, while the sum is 57.

The spelling of 263217125772255 in words is "two hundred sixty-three trillion, two hundred seventeen billion, one hundred twenty-five million, seven hundred seventy-two thousand, two hundred fifty-five".