19925755573 has 16 divisors (see below), whose sum is σ = 21311080560. Its totient is φ = 18564443136.

The previous prime is 19925755571. The next prime is 19925755583. The reversal of 19925755573 is 37555752991.

It can be written as a sum of positive squares in 8 ways, for example, as 215561124 + 19710194449 = 14682^2 + 140393^2 .

It is a cyclic number.

It is not a de Polignac number, because 19925755573 - 2¹ = 19925755571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19925755571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2287815 + ... + 2296507.

It is an arithmetic number, because the mean of its divisors is an integer number (1331942535).

Almost surely, 2^19925755573 is an apocalyptic number.

It is an amenable number.

19925755573 is a deficient number, since it is larger than the sum of its proper divisors (1385324987).

19925755573 is a wasteful number, since it uses less digits than its factorization.

19925755573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056.

The product of its digits is 14883750, while the sum is 58.

The spelling of 19925755573 in words is "nineteen billion, nine hundred twenty-five million, seven hundred fifty-five thousand, five hundred seventy-three".