25545223 has 8 divisors (see below), whose sum is σ = 28144656. Its totient is φ = 22992000.

The previous prime is 25545167. The next prime is 25545227. The reversal of 25545223 is 32254552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25545223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25545191 and 25545200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545227) 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, 10386 + ... + 12607.

It is an arithmetic number, because the mean of its divisors is an integer number (3518082).

Almost surely, 2^25545223 is an apocalyptic number.

25545223 is a deficient number, since it is larger than the sum of its proper divisors (2599433).

25545223 is a wasteful number, since it uses less digits than its factorization.

25545223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23105.

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

The square root of 25545223 is about 5054.2282299081. The cubic root of 25545223 is about 294.5121612484.

Adding to 25545223 its reverse (32254552), we get a palindrome (57799775).

It can be divided in two parts, 2554 and 5223, that added together give a palindrome (7777).

The spelling of 25545223 in words is "twenty-five million, five hundred forty-five thousand, two hundred twenty-three".