255520437241 has 2 divisors, whose sum is σ = 255520437242. Its totient is φ = 255520437240.

The previous prime is 255520437239. The next prime is 255520437287. The reversal of 255520437241 is 142734025552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244070581225 + 11449856016 = 494035^2 + 107004^2 .

It is a cyclic number.

It is not a de Polignac number, because 255520437241 - 2¹ = 255520437239 is a prime.

It is a super-3 number, since 3×255520437241³ (a number of 35 digits) contains 333 as substring.

Together with 255520437239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 255520437194 and 255520437203.

It is not a weakly prime, because it can be changed into another prime (255520434241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127760218620 + 127760218621.

It is an arithmetic number, because the mean of its divisors is an integer number (127760218621).

Almost surely, 2^255520437241 is an apocalyptic number.

It is an amenable number.

255520437241 is a deficient number, since it is larger than the sum of its proper divisors (1).

255520437241 is an equidigital number, since it uses as much as digits as its factorization.

255520437241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 255520437241 in words is "two hundred fifty-five billion, five hundred twenty million, four hundred thirty-seven thousand, two hundred forty-one".