245544502504109 has 2 divisors, whose sum is σ = 245544502504110. Its totient is φ = 245544502504108.

The previous prime is 245544502504087. The next prime is 245544502504121. The reversal of 245544502504109 is 901405205445542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180801719740009 + 64742782764100 = 13446253^2 + 8046290^2 .

It is a cyclic number.

It is not a de Polignac number, because 245544502504109 - 2¹² = 245544502500013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245544502504159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122772251252054 + 122772251252055.

It is an arithmetic number, because the mean of its divisors is an integer number (122772251252055).

Almost surely, 2^{245544502504109} is an apocalyptic number.

It is an amenable number.

245544502504109 is a deficient number, since it is larger than the sum of its proper divisors (1).

245544502504109 is an equidigital number, since it uses as much as digits as its factorization.

245544502504109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 245544502504109 in words is "two hundred forty-five trillion, five hundred forty-four billion, five hundred two million, five hundred four thousand, one hundred nine".