255803101 has 2 divisors, whose sum is σ = 255803102. Its totient is φ = 255803100.

The previous prime is 255803071. The next prime is 255803143. The reversal of 255803101 is 101308552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140991876 + 114811225 = 11874^2 + 10715^2 .

It is a cyclic number.

It is not a de Polignac number, because 255803101 - 2⁷ = 255802973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255803201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127901550 + 127901551.

It is an arithmetic number, because the mean of its divisors is an integer number (127901551).

Almost surely, 2^255803101 is an apocalyptic number.

It is an amenable number.

255803101 is a deficient number, since it is larger than the sum of its proper divisors (1).

255803101 is an equidigital number, since it uses as much as digits as its factorization.

255803101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 255803101 is about 15993.8457226522. The cubic root of 255803101 is about 634.7975885752.

The spelling of 255803101 in words is "two hundred fifty-five million, eight hundred three thousand, one hundred one".