25372231 has 2 divisors, whose sum is σ = 25372232. Its totient is φ = 25372230.

The previous prime is 25372223. The next prime is 25372241. The reversal of 25372231 is 13227352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25372231 - 2³ = 25372223 is a prime.

It is a super-2 number, since 2×25372231² = 1287500211834722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25372196 and 25372205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25372241) 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, 12686115 + 12686116.

It is an arithmetic number, because the mean of its divisors is an integer number (12686116).

Almost surely, 2^25372231 is an apocalyptic number.

25372231 is a deficient number, since it is larger than the sum of its proper divisors (1).

25372231 is an equidigital number, since it uses as much as digits as its factorization.

25372231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 25.

The square root of 25372231 is about 5037.0855660789. The cubic root of 25372231 is about 293.8458437213.

Adding to 25372231 its reverse (13227352), we get a palindrome (38599583).

The spelling of 25372231 in words is "twenty-five million, three hundred seventy-two thousand, two hundred thirty-one".