250553500409 has 2 divisors, whose sum is σ = 250553500410. Its totient is φ = 250553500408.

The previous prime is 250553500343. The next prime is 250553500429. The reversal of 250553500409 is 904005355052.

250553500409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144962947600 + 105590552809 = 380740^2 + 324947^2 .

It is a cyclic number.

It is not a de Polignac number, because 250553500409 - 2²⁰ = 250552451833 is a prime.

It is not a weakly prime, because it can be changed into another prime (250553500429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125276750204 + 125276750205.

It is an arithmetic number, because the mean of its divisors is an integer number (125276750205).

Almost surely, 2^250553500409 is an apocalyptic number.

It is an amenable number.

250553500409 is a deficient number, since it is larger than the sum of its proper divisors (1).

250553500409 is an equidigital number, since it uses as much as digits as its factorization.

250553500409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 250553500409 in words is "two hundred fifty billion, five hundred fifty-three million, five hundred thousand, four hundred nine".