25530423 has 8 divisors (see below), whose sum is σ = 34115328. Its totient is φ = 16982904.

The previous prime is 25530403. The next prime is 25530493. The reversal of 25530423 is 32403552.

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

It is not a de Polignac number, because 25530423 - 2⁶ = 25530359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25530393 and 25530402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7711 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (4264416).

Almost surely, 2^25530423 is an apocalyptic number.

25530423 is a deficient number, since it is larger than the sum of its proper divisors (8584905).

25530423 is a wasteful number, since it uses less digits than its factorization.

25530423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18693.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25530423 is about 5052.7638971161. The cubic root of 25530423 is about 294.4552736125.

Adding to 25530423 its reverse (32403552), we get a palindrome (57933975).

The spelling of 25530423 in words is "twenty-five million, five hundred thirty thousand, four hundred twenty-three".