25932281 has 2 divisors, whose sum is σ = 25932282. Its totient is φ = 25932280.

The previous prime is 25932251. The next prime is 25932289. The reversal of 25932281 is 18223952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24840256 + 1092025 = 4984^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 25932281 - 2¹⁸ = 25670137 is a prime.

It is a super-2 number, since 2×25932281² = 1344966395725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25932289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12966140 + 12966141.

It is an arithmetic number, because the mean of its divisors is an integer number (12966141).

Almost surely, 2^25932281 is an apocalyptic number.

It is an amenable number.

25932281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25932281 is an equidigital number, since it uses as much as digits as its factorization.

25932281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 25932281 is about 5092.3747898206. The cubic root of 25932281 is about 295.9921815868.

The spelling of 25932281 in words is "twenty-five million, nine hundred thirty-two thousand, two hundred eighty-one".