250883278781 has 2 divisors, whose sum is σ = 250883278782. Its totient is φ = 250883278780.

The previous prime is 250883278769. The next prime is 250883278829. The reversal of 250883278781 is 187872388052.

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., 247441579225 + 3441699556 = 497435^2 + 58666^2 .

It is a cyclic number.

It is not a de Polignac number, because 250883278781 - 2²⁶ = 250816169917 is a prime.

It is a super-2 number, since 2×250883278781² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250883278781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250883275781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125441639390 + 125441639391.

It is an arithmetic number, because the mean of its divisors is an integer number (125441639391).

Almost surely, 2^250883278781 is an apocalyptic number.

It is an amenable number.

250883278781 is a deficient number, since it is larger than the sum of its proper divisors (1).

250883278781 is an equidigital number, since it uses as much as digits as its factorization.

250883278781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 250883278781 in words is "two hundred fifty billion, eight hundred eighty-three million, two hundred seventy-eight thousand, seven hundred eighty-one".