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23125 = 5437
BaseRepresentation
bin101101001010101
31011201111
411221111
51220000
6255021
7124264
oct55125
934644
1023125
1116413
1211471
13a6ab
1485db
156cba
hex5a55

23125 has 10 divisors (see below), whose sum is σ = 29678. Its totient is φ = 18000.

The previous prime is 23117. The next prime is 23131. The reversal of 23125 is 52132.

Adding to 23125 its reverse (52132), we get a palindrome (75257).

It can be divided in two parts, 231 and 25, that multiplied together give a palindrome (5775).

It can be written as a sum of positive squares in 5 ways, for example, as 4356 + 18769 = 66^2 + 137^2 .

It is not a de Polignac number, because 23125 - 23 = 23117 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 607 + ... + 643.

223125 is an apocalyptic number.

23125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23125 is a deficient number, since it is larger than the sum of its proper divisors (6553).

23125 is an frugal number, since it uses more digits than its factorization.

23125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 42 counting only the distinct ones).

The product of its digits is 60, while the sum is 13.

The square root of 23125 is about 152.0690632575. The cubic root of 23125 is about 28.4900960765.

The spelling of 23125 in words is "twenty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 37 125 185 625 925 4625 23125