19375 has 10 divisors (see below), whose sum is σ = 24992.
Its totient is φ = 15000.
The previous prime is 19373. The next prime is 19379. The reversal of 19375 is 57391.
It is not a de Polignac number, because 19375 - 21 = 19373 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is an Ulam number.
It is a Duffinian number.
It is a nialpdrome in base 5.
It is a zygodrome in base 5.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19373) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 610 + ... + 640.
219375 is an apocalyptic number.
19375 is a deficient number, since it is larger than the sum of its proper divisors (5617).
19375 is an frugal number, since it uses more digits than its factorization.
19375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51 (or 36 counting only the distinct ones).
The product of its digits is 945, while the sum is 25.
The square root of 19375 is about 139.1941090708.
The cubic root of 19375 is about 26.8584267747.
The spelling of 19375 in words is "nineteen thousand, three hundred seventy-five".