25554223 has 2 divisors, whose sum is σ = 25554224. Its totient is φ = 25554222.

The previous prime is 25554203. The next prime is 25554227. The reversal of 25554223 is 32245552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25554223 - 2⁹ = 25553711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25554191 and 25554200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25554227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777111 + 12777112.

It is an arithmetic number, because the mean of its divisors is an integer number (12777112).

Almost surely, 2^25554223 is an apocalyptic number.

25554223 is a deficient number, since it is larger than the sum of its proper divisors (1).

25554223 is an equidigital number, since it uses as much as digits as its factorization.

25554223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 28.

The square root of 25554223 is about 5055.1184951492. The cubic root of 25554223 is about 294.5467443382.

Adding to 25554223 its reverse (32245552), we get a palindrome (57799775).

The spelling of 25554223 in words is "twenty-five million, five hundred fifty-four thousand, two hundred twenty-three".