550250320309 has 2 divisors, whose sum is σ = 550250320310. Its totient is φ = 550250320308.

The previous prime is 550250320271. The next prime is 550250320339. The reversal of 550250320309 is 903023052055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357959300209 + 192291020100 = 598297^2 + 438510^2 .

It is a cyclic number.

It is not a de Polignac number, because 550250320309 - 2¹⁹ = 550249796021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550250320339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275125160154 + 275125160155.

It is an arithmetic number, because the mean of its divisors is an integer number (275125160155).

Almost surely, 2^550250320309 is an apocalyptic number.

It is an amenable number.

550250320309 is a deficient number, since it is larger than the sum of its proper divisors (1).

550250320309 is an equidigital number, since it uses as much as digits as its factorization.

550250320309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 550250320309 in words is "five hundred fifty billion, two hundred fifty million, three hundred twenty thousand, three hundred nine".