19320725 has 12 divisors (see below), whose sum is σ = 24060960. Its totient is φ = 15390000.

The previous prime is 19320709. The next prime is 19320727. The reversal of 19320725 is 52702391.

It is not a de Polignac number, because 19320725 - 2⁴ = 19320709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19320727) 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, 4736 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (2005080).

Almost surely, 2^19320725 is an apocalyptic number.

It is an amenable number.

19320725 is a deficient number, since it is larger than the sum of its proper divisors (4740235).

19320725 is a wasteful number, since it uses less digits than its factorization.

19320725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 19320725 is about 4395.5346659991. The cubic root of 19320725 is about 268.3332390297. Note that the first 3 decimals are identical.

The spelling of 19320725 in words is "nineteen million, three hundred twenty thousand, seven hundred twenty-five".