1550244197 has 2 divisors, whose sum is σ = 1550244198. Its totient is φ = 1550244196.

The previous prime is 1550244173. The next prime is 1550244209. The reversal of 1550244197 is 7914420551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1205547841 + 344696356 = 34721^2 + 18566^2 .

It is an emirp because it is prime and its reverse (7914420551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550244197 - 2⁸ = 1550243941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1550244197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550243197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775122098 + 775122099.

It is an arithmetic number, because the mean of its divisors is an integer number (775122099).

Almost surely, 2^1550244197 is an apocalyptic number.

It is an amenable number.

1550244197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550244197 is an equidigital number, since it uses as much as digits as its factorization.

1550244197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1550244197 is about 39373.1405529201. The cubic root of 1550244197 is about 1157.3552999536.

The spelling of 1550244197 in words is "one billion, five hundred fifty million, two hundred forty-four thousand, one hundred ninety-seven".