19823925 has 24 divisors (see below), whose sum is σ = 35756640. Its totient is φ = 9611200.

The previous prime is 19823917. The next prime is 19823927. The reversal of 19823925 is 52932891.

19823925 = 605² + 606² + ... + 654².

It is not a de Polignac number, because 19823925 - 2³ = 19823917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19823927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11190 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (1489860).

Almost surely, 2^19823925 is an apocalyptic number.

19823925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19823925 is a deficient number, since it is larger than the sum of its proper divisors (15932715).

19823925 is a wasteful number, since it uses less digits than its factorization.

19823925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24053 (or 24048 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 19823925 is about 4452.4066525869. The cubic root of 19823925 is about 270.6428440925.

The spelling of 19823925 in words is "nineteen million, eight hundred twenty-three thousand, nine hundred twenty-five".