19783925 has 12 divisors (see below), whose sum is σ = 28036896. Its totient is φ = 13566000.

The previous prime is 19783919. The next prime is 19783943. The reversal of 19783925 is 52938791.

It is not a de Polignac number, because 19783925 - 2⁴ = 19783909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56351 + ... + 56700.

It is an arithmetic number, because the mean of its divisors is an integer number (2336408).

Almost surely, 2^19783925 is an apocalyptic number.

It is an amenable number.

19783925 is a deficient number, since it is larger than the sum of its proper divisors (8252971).

19783925 is a wasteful number, since it uses less digits than its factorization.

19783925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113068 (or 113063 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 19783925 is about 4447.9124316920. The cubic root of 19783925 is about 270.4606904040.

The spelling of 19783925 in words is "nineteen million, seven hundred eighty-three thousand, nine hundred twenty-five".