1295224550489 has 2 divisors, whose sum is σ = 1295224550490. Its totient is φ = 1295224550488.

The previous prime is 1295224550383. The next prime is 1295224550519. The reversal of 1295224550489 is 9840554225921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 827539534864 + 467685015625 = 909692^2 + 683875^2 .

It is an emirp because it is prime and its reverse (9840554225921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295224550489 is a prime.

It is a super-2 number, since 2×1295224550489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1295224555489) 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, 647612275244 + 647612275245.

It is an arithmetic number, because the mean of its divisors is an integer number (647612275245).

Almost surely, 2^{1295224550489} is an apocalyptic number.

It is an amenable number.

1295224550489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295224550489 is an equidigital number, since it uses as much as digits as its factorization.

1295224550489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 1295224550489 in words is "one trillion, two hundred ninety-five billion, two hundred twenty-four million, five hundred fifty thousand, four hundred eighty-nine".