19530125 has 8 divisors (see below), whose sum is σ = 24373752. Its totient is φ = 15624000.

The previous prime is 19530109. The next prime is 19530131. The reversal of 19530125 is 52103591.

It can be written as a sum of positive squares in 4 ways, for example, as 6295081 + 13235044 = 2509^2 + 3638^2 .

It is not a de Polignac number, because 19530125 - 2⁴ = 19530109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19530094 and 19530103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77996 + ... + 78245.

It is an arithmetic number, because the mean of its divisors is an integer number (3046719).

Almost surely, 2^19530125 is an apocalyptic number.

It is an amenable number.

19530125 is a deficient number, since it is larger than the sum of its proper divisors (4843627).

19530125 is an equidigital number, since it uses as much as digits as its factorization.

19530125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156256 (or 156246 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 19530125 is about 4419.2901013624. The cubic root of 19530125 is about 269.2991655114.

The spelling of 19530125 in words is "nineteen million, five hundred thirty thousand, one hundred twenty-five".