255003883781 has 2 divisors, whose sum is σ = 255003883782. Its totient is φ = 255003883780.

The previous prime is 255003883747. The next prime is 255003883789. The reversal of 255003883781 is 187388300552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250975950625 + 4027933156 = 500975^2 + 63466^2 .

It is a cyclic number.

It is not a de Polignac number, because 255003883781 - 2¹⁴ = 255003867397 is a prime.

It is a super-2 number, since 2×255003883781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255003883789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127501941890 + 127501941891.

It is an arithmetic number, because the mean of its divisors is an integer number (127501941891).

Almost surely, 2^255003883781 is an apocalyptic number.

It is an amenable number.

255003883781 is a deficient number, since it is larger than the sum of its proper divisors (1).

255003883781 is an equidigital number, since it uses as much as digits as its factorization.

255003883781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 255003883781 in words is "two hundred fifty-five billion, three million, eight hundred eighty-three thousand, seven hundred eighty-one".