19473725 has 12 divisors (see below), whose sum is σ = 24206784. Its totient is φ = 15540720.

The previous prime is 19473719. The next prime is 19473731. The reversal of 19473725 is 52737491.

It is an interprime number because it is at equal distance from previous prime (19473719) and next prime (19473731).

It is not a de Polignac number, because 19473725 - 2¹⁴ = 19457341 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon 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, 14012 + ... + 15338.

It is an arithmetic number, because the mean of its divisors is an integer number (2017232).

Almost surely, 2^19473725 is an apocalyptic number.

It is an amenable number.

19473725 is a deficient number, since it is larger than the sum of its proper divisors (4733059).

19473725 is a wasteful number, since it uses less digits than its factorization.

19473725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1919 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 19473725 is about 4412.9043724060. The cubic root of 19473725 is about 269.0396840336.

The spelling of 19473725 in words is "nineteen million, four hundred seventy-three thousand, seven hundred twenty-five".