19941225 has 12 divisors (see below), whose sum is σ = 32969616. Its totient is φ = 10635280.

The previous prime is 19941217. The next prime is 19941247. The reversal of 19941225 is 52214991.

It is not a de Polignac number, because 19941225 - 2³ = 19941217 is a prime.

It is an unprimeable number.

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, 132867 + ... + 133016.

It is an arithmetic number, because the mean of its divisors is an integer number (2747468).

Almost surely, 2^19941225 is an apocalyptic number.

19941225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19941225 is a deficient number, since it is larger than the sum of its proper divisors (13028391).

19941225 is a wasteful number, since it uses less digits than its factorization.

19941225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265896 (or 265891 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 19941225 is about 4465.5598753124. The cubic root of 19941225 is about 271.1756009367.

The spelling of 19941225 in words is "nineteen million, nine hundred forty-one thousand, two hundred twenty-five".