25204423 has 4 divisors (see below), whose sum is σ = 25217920. Its totient is φ = 25190928.

The previous prime is 25204411. The next prime is 25204429. The reversal of 25204423 is 32440252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25204423 - 2⁵ = 25204391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25204394 and 25204403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25204429) 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 3 ways as a sum of consecutive naturals, for example, 3390 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (6304480).

Almost surely, 2^25204423 is an apocalyptic number.

25204423 is a deficient number, since it is larger than the sum of its proper divisors (13497).

25204423 is a wasteful number, since it uses less digits than its factorization.

25204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13496.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 25204423 is about 5020.4006812206. The cubic root of 25204423 is about 293.1965933208.

Adding to 25204423 its reverse (32440252), we get a palindrome (57644675).

The spelling of 25204423 in words is "twenty-five million, two hundred four thousand, four hundred twenty-three".