19470225 has 12 divisors (see below), whose sum is σ = 32190896. Its totient is φ = 10384080.

The previous prime is 19470221. The next prime is 19470233. The reversal of 19470225 is 52207491.

It is not a de Polignac number, because 19470225 - 2² = 19470221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19470192 and 19470201.

It is not an unprimeable number, because it can be changed into a prime (19470221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129727 + ... + 129876.

Almost surely, 2^19470225 is an apocalyptic number.

19470225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19470225 is a deficient number, since it is larger than the sum of its proper divisors (12720671).

19470225 is a wasteful number, since it uses less digits than its factorization.

19470225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259616 (or 259611 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 19470225 is about 4412.5077903614. The cubic root of 19470225 is about 269.0235649584.

The spelling of 19470225 in words is "nineteen million, four hundred seventy thousand, two hundred twenty-five".