25293 has 4 divisors (see below), whose sum is σ = 33728. Its totient is φ = 16860.

The previous prime is 25261. The next prime is 25301. The reversal of 25293 is 39252.

25293 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25293 - 2⁵ = 25261 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

25293 is a lucky number.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213 + ... + 4218.

It is an arithmetic number, because the mean of its divisors is an integer number (8432).

2²⁵²⁹³ is an apocalyptic number.

It is an amenable number.

25293 is a deficient number, since it is larger than the sum of its proper divisors (8435).

25293 is an equidigital number, since it uses as much as digits as its factorization.

25293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434.

The product of its digits is 540, while the sum is 21.

The square root of 25293 is about 159.0377313721. The cubic root of 25293 is about 29.3539656267.

Subtracting from 25293 its product of digits (540), we obtain a triangular number (24753 = T₂₂₂).

It can be divided in two parts, 252 and 93, that multiplied together give a triangular number (23436 = T₂₁₆).

The spelling of 25293 in words is "twenty-five thousand, two hundred ninety-three".