19423725 has 12 divisors (see below), whose sum is σ = 32114016. Its totient is φ = 10359280.

The previous prime is 19423717. The next prime is 19423739. The reversal of 19423725 is 52732491.

It is not a de Polignac number, because 19423725 - 2³ = 19423717 is a prime.

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, 129417 + ... + 129566.

It is an arithmetic number, because the mean of its divisors is an integer number (2676168).

Almost surely, 2^19423725 is an apocalyptic number.

19423725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19423725 is a deficient number, since it is larger than the sum of its proper divisors (12690291).

19423725 is a wasteful number, since it uses less digits than its factorization.

19423725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258996 (or 258991 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 19423725 is about 4407.2355280833. The cubic root of 19423725 is about 268.8092279774.

The spelling of 19423725 in words is "nineteen million, four hundred twenty-three thousand, seven hundred twenty-five".