19530625 has 10 divisors (see below), whose sum is σ = 24406250. Its totient is φ = 15624000.

The previous prime is 19530619. The next prime is 19530631. The reversal of 19530625 is 52603591.

It is an interprime number because it is at equal distance from previous prime (19530619) and next prime (19530631).

It can be written as a sum of positive squares in 5 ways, for example, as 6230016 + 13300609 = 2496^2 + 3647^2 .

It is not a de Polignac number, because 19530625 - 2¹⁷ = 19399553 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15000 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (2440625).

Almost surely, 2^19530625 is an apocalyptic number.

It is an amenable number.

19530625 is a deficient number, since it is larger than the sum of its proper divisors (4875625).

19530625 is an frugal number, since it uses more digits than its factorization.

19530625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31269 (or 31254 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 19530625 is about 4419.3466711721. The cubic root of 19530625 is about 269.3014636438.

The spelling of 19530625 in words is "nineteen million, five hundred thirty thousand, six hundred twenty-five".