1225550288659 has 2 divisors, whose sum is σ = 1225550288660. Its totient is φ = 1225550288658.

The previous prime is 1225550288639. The next prime is 1225550288719. The reversal of 1225550288659 is 9568820555221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225550288659 - 2¹⁹ = 1225549764371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225550288639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612775144329 + 612775144330.

It is an arithmetic number, because the mean of its divisors is an integer number (612775144330).

Almost surely, 2^{1225550288659} is an apocalyptic number.

1225550288659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225550288659 is an equidigital number, since it uses as much as digits as its factorization.

1225550288659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280000, while the sum is 58.

The spelling of 1225550288659 in words is "one trillion, two hundred twenty-five billion, five hundred fifty million, two hundred eighty-eight thousand, six hundred fifty-nine".