25469231 has 2 divisors, whose sum is σ = 25469232. Its totient is φ = 25469230.

The previous prime is 25469207. The next prime is 25469243. The reversal of 25469231 is 13296452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25469231 is a prime.

It is a super-2 number, since 2×25469231² = 1297363455462722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25469251) 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, 12734615 + 12734616.

It is an arithmetic number, because the mean of its divisors is an integer number (12734616).

Almost surely, 2^25469231 is an apocalyptic number.

25469231 is a deficient number, since it is larger than the sum of its proper divisors (1).

25469231 is an equidigital number, since it uses as much as digits as its factorization.

25469231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 25469231 is about 5046.7049646279. The cubic root of 25469231 is about 294.2198326527.

The spelling of 25469231 in words is "twenty-five million, four hundred sixty-nine thousand, two hundred thirty-one".