19983725 has 12 divisors (see below), whose sum is σ = 26084640. Its totient is φ = 15145200.

The previous prime is 19983709. The next prime is 19983727. The reversal of 19983725 is 52738991.

It is not a de Polignac number, because 19983725 - 2⁴ = 19983709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19983727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20561 + ... + 21510.

It is an arithmetic number, because the mean of its divisors is an integer number (2173720).

Almost surely, 2^19983725 is an apocalyptic number.

It is an amenable number.

19983725 is a deficient number, since it is larger than the sum of its proper divisors (6100915).

19983725 is a wasteful number, since it uses less digits than its factorization.

19983725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42100 (or 42095 counting only the distinct ones).

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

The square root of 19983725 is about 4470.3159843573. The cubic root of 19983725 is about 271.3681131009.

The spelling of 19983725 in words is "nineteen million, nine hundred eighty-three thousand, seven hundred twenty-five".