17650020053 has 6 divisors (see below), whose sum is σ = 18139941666. Its totient is φ = 17172991152.

The previous prime is 17650020019. The next prime is 17650020079. The reversal of 17650020053 is 35002005671.

It can be written as a sum of positive squares in 3 ways, for example, as 12722260849 + 4927759204 = 112793^2 + 70198^2 .

It is a de Polignac number, because none of the positive numbers 2^k-17650020053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17650019998 and 17650020025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17650020083) 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 in 5 ways as a sum of consecutive naturals, for example, 6444950 + ... + 6447687.

It is an arithmetic number, because the mean of its divisors is an integer number (3023323611).

Almost surely, 2^17650020053 is an apocalyptic number.

It is an amenable number.

17650020053 is a deficient number, since it is larger than the sum of its proper divisors (489921613).

17650020053 is an equidigital number, since it uses as much as digits as its factorization.

17650020053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12892711 (or 12892674 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The spelling of 17650020053 in words is "seventeen billion, six hundred fifty million, twenty thousand, fifty-three".