1225550288719 has 2 divisors, whose sum is σ = 1225550288720. Its totient is φ = 1225550288718.

The previous prime is 1225550288659. The next prime is 1225550288741. The reversal of 1225550288719 is 9178820555221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225550288719 - 2¹⁷ = 1225550157647 is a prime.

It is a super-2 number, since 2×1225550288719² (a number of 25 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 1225550288719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225550288759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612775144359 + 612775144360.

It is an arithmetic number, because the mean of its divisors is an integer number (612775144360).

Almost surely, 2^{1225550288719} is an apocalyptic number.

1225550288719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225550288719 is an equidigital number, since it uses as much as digits as its factorization.

1225550288719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032000, while the sum is 55.

The spelling of 1225550288719 in words is "one trillion, two hundred twenty-five billion, five hundred fifty million, two hundred eighty-eight thousand, seven hundred nineteen".