25302223 has 2 divisors, whose sum is σ = 25302224. Its totient is φ = 25302222.

The previous prime is 25302203. The next prime is 25302241. The reversal of 25302223 is 32220352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25302223 - 2¹⁷ = 25171151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25302223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25302203) 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 as a sum of consecutive naturals, namely, 12651111 + 12651112.

It is an arithmetic number, because the mean of its divisors is an integer number (12651112).

Almost surely, 2^25302223 is an apocalyptic number.

25302223 is a deficient number, since it is larger than the sum of its proper divisors (1).

25302223 is an equidigital number, since it uses as much as digits as its factorization.

25302223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 25302223 is about 5030.1315092152. The cubic root of 25302223 is about 293.5753313189.

Adding to 25302223 its reverse (32220352), we get a palindrome (57522575).

It can be divided in two parts, 2530 and 2223, that added together give a triangular number (4753 = T₉₇).

The spelling of 25302223 in words is "twenty-five million, three hundred two thousand, two hundred twenty-three".