19528125 has 24 divisors (see below), whose sum is σ = 32560416. Its totient is φ = 10410000.

The previous prime is 19528123. The next prime is 19528133. The reversal of 19528125 is 52182591.

19528125 is a nontrivial binomial coefficient, being equal to C(6250, 2).

It is not a de Polignac number, because 19528125 - 2¹ = 19528123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19528123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8334 + ... + 10416.

It is an arithmetic number, because the mean of its divisors is an integer number (1356684).

Almost surely, 2^19528125 is an apocalyptic number.

19528125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19528125 is the 6249-th triangular number and also the 3125-th hexagonal number.

It is an amenable number.

19528125 is a deficient number, since it is larger than the sum of its proper divisors (13032291).

19528125 is an frugal number, since it uses more digits than its factorization.

19528125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2091 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The square root of 19528125 is about 4419.0638148821. The cubic root of 19528125 is about 269.2899725900.

The spelling of 19528125 in words is "nineteen million, five hundred twenty-eight thousand, one hundred twenty-five".