19995125753 has 2 divisors, whose sum is σ = 19995125754. Its totient is φ = 19995125752.

The previous prime is 19995125687. The next prime is 19995125791. The reversal of 19995125753 is 35752159991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18638529529 + 1356596224 = 136523^2 + 36832^2 .

It is a cyclic number.

It is not a de Polignac number, because 19995125753 - 2⁸ = 19995125497 is a prime.

It is not a weakly prime, because it can be changed into another prime (19995125053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9997562876 + 9997562877.

It is an arithmetic number, because the mean of its divisors is an integer number (9997562877).

Almost surely, 2^19995125753 is an apocalyptic number.

It is an amenable number.

19995125753 is a deficient number, since it is larger than the sum of its proper divisors (1).

19995125753 is an equidigital number, since it uses as much as digits as its factorization.

19995125753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3827250, while the sum is 56.

The spelling of 19995125753 in words is "nineteen billion, nine hundred ninety-five million, one hundred twenty-five thousand, seven hundred fifty-three".