25473 has 8 divisors (see below), whose sum is σ = 38848. Its totient is φ = 14544.

The previous prime is 25471. The next prime is 25523. The reversal of 25473 is 37452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25473 - 2¹ = 25471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1213 = 25473 / (2 + 5 + 4 + 7 + 3).

It is a d-powerful number, because it can be written as 2 + 5³ + 4⁷ + 7⁴ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25473.

It is not an unprimeable number, because it can be changed into a prime (25471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 627.

It is an arithmetic number, because the mean of its divisors is an integer number (4856).

2²⁵⁴⁷³ is an apocalyptic number.

It is an amenable number.

25473 is a deficient number, since it is larger than the sum of its proper divisors (13375).

25473 is a wasteful number, since it uses less digits than its factorization.

25473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its digits is 840, while the sum is 21.

The square root of 25473 is about 159.6026315573. The cubic root of 25473 is about 29.4234345064.

Subtracting from 25473 its sum of digits (21), we obtain a palindrome (25452).

The spelling of 25473 in words is "twenty-five thousand, four hundred seventy-three".