255392773 has 2 divisors, whose sum is σ = 255392774. Its totient is φ = 255392772.

The previous prime is 255392749. The next prime is 255392827. The reversal of 255392773 is 377293552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247338529 + 8054244 = 15727^2 + 2838^2 .

It is a cyclic number.

It is not a de Polignac number, because 255392773 - 2²¹ = 253295621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255392873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127696386 + 127696387.

It is an arithmetic number, because the mean of its divisors is an integer number (127696387).

Almost surely, 2^255392773 is an apocalyptic number.

It is an amenable number.

255392773 is a deficient number, since it is larger than the sum of its proper divisors (1).

255392773 is an equidigital number, since it uses as much as digits as its factorization.

255392773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 43.

The square root of 255392773 is about 15981.0128903020. The cubic root of 255392773 is about 634.4579854165.

The spelling of 255392773 in words is "two hundred fifty-five million, three hundred ninety-two thousand, seven hundred seventy-three".