19225425 has 24 divisors (see below), whose sum is σ = 32815360. Its totient is φ = 9921600.

The previous prime is 19225417. The next prime is 19225441. The reversal of 19225425 is 52452291.

It is not a de Polignac number, because 19225425 - 2³ = 19225417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19225392 and 19225401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1810 + ... + 6459.

Almost surely, 2^19225425 is an apocalyptic number.

19225425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19225425 is a deficient number, since it is larger than the sum of its proper divisors (13589935).

19225425 is a wasteful number, since it uses less digits than its factorization.

19225425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313 (or 8308 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 19225425 is about 4384.6807181367. The cubic root of 19225425 is about 267.8913246537.

The spelling of 19225425 in words is "nineteen million, two hundred twenty-five thousand, four hundred twenty-five".