255870089773 has 2 divisors, whose sum is σ = 255870089774. Its totient is φ = 255870089772.

The previous prime is 255870089743. The next prime is 255870089809. The reversal of 255870089773 is 377980078552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179421710724 + 76448379049 = 423582^2 + 276493^2 .

It is a cyclic number.

It is not a de Polignac number, because 255870089773 - 2³³ = 247280155181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255870089723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127935044886 + 127935044887.

It is an arithmetic number, because the mean of its divisors is an integer number (127935044887).

Almost surely, 2^255870089773 is an apocalyptic number.

It is an amenable number.

255870089773 is a deficient number, since it is larger than the sum of its proper divisors (1).

255870089773 is an equidigital number, since it uses as much as digits as its factorization.

255870089773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 255870089773 in words is "two hundred fifty-five billion, eight hundred seventy million, eighty-nine thousand, seven hundred seventy-three".